1、 I am not afraid _____ stay at home by myself.

2、 做某事的最佳方式

3、 It's so good to exercise by______ basketball.

4、 Although we are very hungry and tired, ______ we still work.

5、 The answer _____ the question is very interesting.

6、 Here_____ a bus.

7、 50 percent of the ice cream_____getting bad !

8、 Eating too much is bad for your_____.

9、 He may _____ take some actions.

10、（多选题） “忙的”怎么说？ 多选

11、 Are you free _____ the room？

12、 “一段时间”怎么说

13、（判断题） often的频率不比usually高。

14、 —. _______will you stay in Beijing? —. For 3 weeks.

15、 Do you drink milk? — ______.

16、 If you want to be healthier, you must eat ________ junk food, I think.

17、 If you need water, ask waiter ______ it.

18、 I didn't get good points in this test, ______, my parents still buy me a bike as my birthday gift.

19、 I like ______ books, because they can make me happy.

20、 I really dislike milk, but my mother thinks it's good for my health, so I_____ drink it .