1 . —Why can’t Mary see the blackboard?
—Because a boy sits ________ her, and he is very tall.

A．behind

B．next to

C．across from

D．in front of

2 . WeChat’s popularity (普及) grows quickly because it’s convenient for people to ________ (交流) with each other.

3 . I _________ knocked into a car. How dangerous! (几乎)

4 . 轮船在甲、乙两码头之间航行，顺水航行需要4小时，逆水航行需要5小时，水流的速度为4千米/时，则甲、乙两码头之间的距离是______千米．

5 . 我一周打一次冰球。
I play ________ ________ once a week.

6 . Our first class ________ at 8:10. I always get to school at 7:50 to do the morning reading.

A．finish

B．finishes

C．begin

D．begins

7 . Many people will ________ (probable) stay at home to watch the Olympic Games this winter.

8 . Look! His e________ is in the pencil case.

9 . I often play Chinese chess ________ my grandpa at home.

10 . The food in this hotel is good, but the _________ (服务) is poor.