1 . Swimming is good for teenagers, ______ some experts say will help them to stimulate their potential and promote their brain development. (用适当的词填空)

2 . It was the third time that I _________ (bite), so I went to the hospital a third time. （所给词的适当形式填空）

3 . Elon Musk has founded many high-tech companies, almost half of ________are expected to direct tomorrow’s world. (用适当的词填空)

4 . Amy, as well as her brothers, ________ (give) a warm welcome when returning to the village last week. (所给词的适当形式填空)

5 . The film brought the hours back to me ________ I was taken good care of in that far-away village.

A．when

B．until

C．that

D．where

6 . —What was the party like?
—Wonderful. It’s been years _______ I enjoyed myself that much.

A．after

B．before

C．when

D．since

7 . Large amounts of food ________(transport) to the earthquake-striken area in the past few weeks. (所给词的适当形式填空)

8 . We all know some cases ________ arts can cure people. (用适当的词填空)

9 . It is often the case ________ anything is possible for those who hang onto hopes. （用适当的词填空）

10 . I think this trip was well worth ________ we had paid. （用适当的词填空）