What should you consider before ________ for an exercise class?
A. sign up
B. to sign up
C. signing up
D. will sign up
Đáp án: C
Giải thích: before + Ving: trước khi làm gì
Dịch: Bạn nên cân nhắc gì trước khi đăng kí lớp thể dục?
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Aware of her disability, Anna makes great __________ to study the alphabet.
I think my parents will be _________ when hearing that I passed the exam with flying colours.
Which activities do you think would be difficult ________ blind and deaf people?
She used __________ to a special school for deaf-mute students.
A class began seven years ___________ with a mix of children who are dumb, deaf and mentally retarded.
After a long time of revision, she is gradually fond _________ English.
Braille _________ a system of raised dots that can be read with the fingers by people who are blind.