It was a nasty memory. Do you remember both of us wearing sunglasses to avoid ___________ by the supervisors? [nasty: disgusting]
A.being recognized
B.to be recognized
C.to recognize
D.recognizing

The hotel was so awful that we wrote a letter of _______ to the travel agency when we got back.

A.relief
B.warning
C.thanks
D.complaint

Rewrite the following sentences and the meaning stays the same.
It was my first visit to North America.
A.I have never been to North America before.
B.I have never been to North America then.
C.I had never been to North America before.
D.I have never been to North America.

The appearance of one or several species may result in the loss of __________.
A.biology
B.biodiversity
C.diversity
D.university

I have never played table tennis before. This is the first time I ________ to play.
A.have tried
B.had tried
C.am trying
D.try

As a result of Japan’s economic growth, many political difficulties have ______.

A.experienced
B.lifted
C.raised
D.arisen

- Tom: “Why don’t we buy Tim a book as a birthday present?” –Jill: “________”
A.Tim will be fourteen next week.
B.What a good idea!
C.I don’t think I will do it.
D.Do you like it?

Although some societies are ________ undeveloped, their languages – from a linguist’s point of view – are very complex.
A.technology
B.technological
C.technologically
D.technologist

Not anything can stop us from doing our best to save the endangered species.
A.not anything
B.us from
C.to save
D.species

We are not used______ on the left.
A.to drive
B.to driving
C.driving
D.to be driven