What we know about certain diseases are still not sufficient to prevent them from spreading easily among the population.
A.easily
B.What we know about
C.from
D.are

We can't help feeling worried about our son.
A.We can do nothing to help our son.
B.We can't help our son stop worrying.
C.We don't worry about our son.
D.We find it impossible not to worry about our son.

"If I were you, I would ask the teacher for help",John said to Tom .
A.John told Tom to ask the teacher.
B.John advised Tom to ask the teacher for help.
C.John advised Tom not to ask the teacher for help.
D.John told Tom that he would ask the teacher for help

Hardly anyone can resist the taste of sushi once they have tried it.
A.Nobody who has tried sushi is able to withstand the temptation to taste it again.
B.So tasty is sushi that, once you have actually tasted it, it's impossible not to want to taste it again.
C.Very few people who have experienced sushi will find it tasty enough to want to experience it again.
D.Nearly everyone who has once experienced the taste of sushi would like to experience it again.

Our neighbours are normally very noisy, but they're being __________this evening.
A.unusually quietly
B.unusual quiet
C.unusually quiet
D.unusual quietly

-"Do you have a minute, Dr Keith?" - "_____________"
A.Sorry, I haven't got it here.
B.Good, I hope so.
C.Sure. What's the problem?
D.Well. I'm not sure when.

The manager ________ him for a minor mistake.
A.complained
B.charged
C.accused
D.blamed

People who are out of work can receive the __________.
A.pension
B.scholarship
C.allowance
D.unemployment benefit

Garbage dumps in some areas have relatively little glass and plastic because _______.
A.people are ordered to return bottles
B.each returned bottle is paid
C.returned bottles are few
D.few bottles are made of glass or plastic

_______(17)
A.looking
B.thinking
C.considering
D.wondering