Question

高一英语必修一,动词填空纠错.

Answer 1

1）requested 被动用过去分词形势

2）had learned 过去完成时

4) starting 特定句型have difficulty doing sth

5) is being repaired 表进行和被动

6）not to be upset advise to do sth

9）would be held 过去将来时