According to the passage, a great variety of influenza strains can appear when______.

She started to clean up the house just after the guests had left.

→ No sooner _______________________________________________.

He didn’t succeeded in searching for the stolen car.

The only thing they didn’t steal was the television.

House prices have risen dramatically this year.

Rewrite each of the sentences without changing its meaning, using the cue given.

We couldn’t have managed without my father’s money.

→ If it hadn’t _______________________________________________.

The policeman acted quickly and averted an accident. (prompt)

→ The policeman’s ________________________________.

The prime minister in unlikely to call an early general election.  (likelihood)

-> The likelihood __________________________________.

Twenty years ago this region produced twice as much coal as it does now.   (halved)

-> The coal produced _____________________________.

People don’t want to buy cars with large engines any more.   (call)

Finish the second sentence so that it means the same as the first one, using the word in capital letters which must not be altered in any way.

You should think about the price before you decide whether to buy it or not.            (consideration)

-> You should ______________________________________.