6. What frustrated Joanna most was her        (not allow) to go abroad alone.

5. I have to go now,for I can't risk        (punish) by our manager.

4. The foreign friends you referred to are looking forward to         

(show) around our newly built language lab.

3.        (expose) to sunlight too much time will do harm to one's health.

2. I think the dictionary published this year is worthy of        (buy) .

1.        (tell) many times,he still couldn't understand what the professor said.

5. The rooms in this hotel need to be repaired as they are too old. 

The rooms in this hotel need        as they are too old.

4. He left immediately the clock struck one.

He left        the clock struck one.

3. .We were just ready to go out when it rained.

We        go out when it rained.

2. Would you mind if I turn down the radio?

Would you mind        the radio?