题目内容：

用所给动词的适当形式填空。（每小题1分，计5分）

1.He was made ____________（work）from morning till night .

2.The doctor told us he would do what he could ____________( save ) the patient.

3.After hundreds of experiments, Edison             (succeed) invented the light bulb.

4.Take down the key points to go over them later while _______ (listen) to his talk.

5.In fact, the tigers in India ___________(disappear) much faster than pandas now.