1 . They found jewels __________ (追溯到) the 1700s. (根据汉语提示完成句子)

2 . Tommy__________(charge) his neighbor 100$ for breaking his cup, his father criticized him for his wild behavior. （所给词的适当形式填空）

3 . _________ (admit) killing three passers-by deliberately, he was sentenced to death.（所给词的适当形式填空）

4 . ________ (suffer) such heavy pollution already, the river needs cleaning up immediately．（所给词的适当形式填空）

5 . ________(detect) by the device, the man was diagnosed with heart attack. （所给词的适当形式填空）

6 . She has had a number of different jobs, r________ from chef to swimming instructor. （根据首字母单词拼写）

7 . Alice walked down the hill, ___________ softly to herself. (sing) （所给单词适当形式填空）

8 . 学了这么多年的汉语，我依然认为它很美。（v-ing作状语）
_________________________________________________________________________________

9 . ______ the heart attack, Monica brought her doctor a bunch of flowers to express her thanks.

A．Surviving	B．To survive
C．Survived	D．Having survived

10 . _______ almost all our time to our schoolwork in the past three months, we have almost no time for fun and play．

A．Having devoted	B．Devoted
C．To devote	D．To have been devoted