Question

正确形式填空

1. you must do something to prevent your house ______ (break in).
2. she decided to devote herself ______ (study) the problem of old age.
3. we should often practisw ______ (speak) english with each other.
4. it took the workmen only two hours to finish ______ (repair) my car.
5. don't forget ______ (return) this book to John when you see him.

Answer 1

1.（from ) being broken in房子与闯入之间是被动关系。 词组： prevent sth/sb from doing sth.
2.devote oneself to dong sth .某人致力于。。。。。。所以应该填to studying
3.你打错了，应该是practise ，English应该大写。practise后面跟doing sth,所以应该是studying
4.finish doing sth :reapair应该用ing形式，repairing
5.forget to do sth 忘记将要做的事，forget doing sth忘记已经做过的事。根据题意，这本书还没有还给John，所以应该是to return.

我建议你看看相关的语法，这一部分是语法中的动词的固定搭配，了解了这些知识，你做这些题就不会有太大的困难了。

Answer 2

1. you must do something to prevent your house breaking in.
2. she decided to devote herself to studying the problem of old age.
3. we should often practise speaking English with each other.
4. it took the workmen only two hours to finish repairing my car.
5. don't forget to return this book to John when you see him.

Answer 3

1being break in 2to study 3speaking 4repairing 5 to return