1 . It’s _________ (possible) to run six thousand metres in five minutes.

2 . — How many people are there in your ______?     — Three.

A．home

B．house

C．family

3 . We need ________ (work) out this math problem by ourselves.

4 . I hope that all our worries and troubles can ______ (appear) in the new year.

5 . Frank’s books are ________—on his bed, on the sofa and under the chair.

6 . To p________（保护）your eyes, you should avoid reading in the sun.

7 . What do you usually do at __________ (周末)?

8 . We have a class m________ every Monday afternoon. We talk about the school life with our teacher.

9 . You can use the road s________ (标志) to help you find the right place.

10 . 老师的课桌在黑板的前面。
The __________ desk is __________ __________ __________ the blackboard.