1．I think it necessary to report the thing to the teacher.
我认为有必要把这件事向老师汇报。
2．He doesn't want her to attend the meeting.
他不想让她参加这次会议。
3．Have you finished writing your composition?
你写完作文了吗？
4．Do you hear someone calling for help?
你听到有人在呼救吗？
5．I can't make myself understood.
我无法让别人理解我的话。
