1 . The park was full of people, _________(enjoy) themselves in the sunshine.(所给词的适当形式填空)

2 . She is a student at Oxford University, ______ for a degree in computer science.

A．studying

B．studied

C．to have studied

D．to be studying

3 . 我们可以围坐在餐桌前，享受美食和团聚的乐趣。(汉译英)

5 . They sat in the garden, ______ (talk) about the days they spent together. (所给词的适当形式填空)

6 . He set off for the Beijing yesterday,________the children behind with his mother.(leave) （所给词的适当形式填空）

7 . But often the drivers just passed by, ______ the human traffic signal ________ ________(以为……理所当然).

8 . ____________ (carry) a cake with ten lighted candles on it, the mother came in and said “Happy Birthday” to the little girl.

9 . Finally I refused to attend classes, ________ (shut) myself in my room for hours. (所给词的适当形式填空)

10 . _________ ________to (追溯到) the 18th century,Peking Opera has over two hundred years of history. (根据汉语提示完成句子)