用所给动词的正确形式填空。1．They'llflytoLondonifthere

问题详情：

用所给动词的正确形式填空。

1．They'll fly to London if there ________ (be) a holiday this summer.

2. If it snows tomorrow, I ________ (stay) at home to watch TV.

3. If she has time, she ________  (visit) the Science Museum with you next weekend.2

4. Unless he ________  (exercise) more, he will get fatter and fatter.

5. Tom ________  (fail) the exams unless he studies hard.

【回答】

　 stay　 visit　cises　 fail

知识点：语法填空

题型：完成句子