根据首字母提示和汉语提示完成句子。

1. His plan s_______  a great one.

2. We mustn't f__________ the history.

3. Thank you very much. Don't m________ it.

4. He is a liar, so noboy b________ his words.

5. You must go to the hospital to ________(检查) your body

6. I _______ (建议) that you should go to see a docotor.

7. The weather _______(似乎) as if it is going to rain.

Do you know since when it is ________ you have been interested in poetry?

A．when

B．until

C．how

D．that