He is surprised __________that there are 54 ethnic groups in our country.

Read the passage, and choose the correct answer A, B, C or D for each question.

Wi-Fi is a method for devices such as smartphones to connect wirelessly to the Internet using radio waves. Connecting to the Internet using Wi-Fi requires a hotspot, but it is always faster than the 3G cellular networks which smartphones can also use to connect, and occasionally faster than 4G. Using Wi-Fi when it is available can also prove to be cheaper and make your phone run more efficiently in the long run than relying on cellular networks.

When you use a Wi-Fi network to access the Internet from your phone, the data usage does not count against your bundled data. Mobile providers often allocate a certain amount of data for free each month and charge you a fee for any data usage beyond this. By connecting via Wi-Fi wherever it is available, you can save your bundled data for situations when you might not be close to any Wi-Fi hotspots.

In many situations, your speed using a strong, dedicated Wi-Fi connection is faster than that of using your mobile network. It is very noticeable when transferring larger files. If you need to download large files or stream media to your smartphone in a hurry, it is much better to do so via Wi-Fi.

Battery life is extremely important for smartphones because you will not be able to connect to the Internet or use certain functions such as the camera flash if your battery is too low. Using Wi-Fi to connect to the Internet drains less battery life than using a mobile network, especially in situations where the cellular coverage fluctuates. Since Wi-Fi is generally faster than using mobile networks, you will also not spend as much time transferring the data, which further decreases battery usage.

Read the passage, and fill in the blank with the suitable word.

Around 60 kilometers southwest of Ha Noi, Perfume Pagoda is one of the largest (1) sites in Huong Son Commune, My Duc District. It comprises a complex of pagodas and Buddhist shrines (2) into the limestone cliffs of Perfume Mount, spreading alongside the (3) up to the peak. The complex’s center is Inner Temple, right inside Huong Tich Cavern. Huge numbers of pilgrims flock to the site (4) Perfume Pagoda Festival, which begins in the middle of the (5) lunar month and (6) until the middle of the third one (or from February to April) in order to (7) for happiness and prosperity in the coming year. Also, it is a very popular opportunity for young (8) to meet and for numerous romances to be (9). On this special occasion, a wide range of traditional cultural activities is incorporated. Perfume Pagoda is not only a religious site, but a great sight-seeing (10) in Viet Nam as well.

The word “drains” in the last paragraph is closest in meaning to __________.

My teachers always encourage _______ hard at school.

I object to him______ private calls on the office phone.

This form must have the ……………. of the writer.

So many witnesses have................ that it will take days to interview them all.

Write about the topic: the invention of computer games cause a lot of problems for children

Using Wi-Fi offers longer battery life because_________.

Are you interested in _____ football?

Trees won’t grow……. there is enough water.

They stretched a rope from one side of the crevasse to the other in order to haul their equipment across. => By ______.

The house was built of wood. It was clearly a fire risk. (using V-ing/ being V3/ed...)

Rewrite the sentence

John has done well in French, but not so well in Math. → While ______.