用所给词的正确形式填空。

1.  _________ to what he has done, we can trust him.(accord)

2.  My mother is the _________friend of mine. (good)

3.  This _________seems natural, (feel)

4.  The young man is good at_________ with others.(communicate)

5.  I would be _________ if you can tell me your opinion, (grate)

6.  Most   students   enjoy   _________   questions   in English, (ask)

7.  There was much _________over this subject at the meeting, (discuss)

8.  The diary can help you remember past_________.(happen)

9.  Why was she so seriously _________  about her family in this matter? (concern)

10.  While _________ in the street,  he happened to meet one of his friends, (walk)