單項(xiàng)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


您可能感興趣的試卷

你可能感興趣的試題

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

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

2.單項(xiàng)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(xiàng)選擇題There are many cities()very fast.

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

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

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