4．The doctor are _________(operate)on the patient．

3．In the Anti-Japanese war, Bethune worked in the _________(north)part of China．

2．A lot of _________(soldier)lost their _________(life)in the water．

1．Bill Gates _________(devote)himself to the computer business．

8．She was a v_________ of a road accident．

B　　 用所给词的适当形式填空

7．She spoke loudly in order to be h_________ clearly．

6．If we buy a house, it wilt cost much money．We can r_________ a house．It is cheap．I think．

5．She kept on writing essays for her school m_________．

4．Have you ever h_________ a boy who set up a company at the age of fifteen?

3．If you eat too much candy, you'll h_________ teeth．