單項選擇題There have been（）medicine in the last 50 years.

A.great advancesin
B.a great advancein
C.great advanceon
D.a great advanceon


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1.單項選擇題Would you mind（）us how old you are?

A.tell
B.to tell
C.telling
D.to telling

2.單項選擇題50% of the people（）for the survey were female.

A.were questioned
B.who questioned
C.who were questioned
D.question

3.單項選擇題There are many cities（）very fast.

A.expand
B.which expand
C.which expanding
D.to expand

4.單項選擇題Just over 70% of people（）for the survey said the net had become essential.

A.questioning
B.questioned
C.question
D.to question

5.單項選擇題There are often advertisements（）to other websites on the Internet.

A.lead
B.led
C.leading
D.to lead