1 . I don’t like science _____ it’s difficult.

A．so

B．but

C．and

D．because

2 . —Do you want to ________ (play) ping-pong with us? —Yes,I do.

3 . are, brothers, those, my (.)
________________________________

4 . Sam wants to share his toys with other ________ (student).

5 . It’s ________ (不可能的) to get there in time.

6 . Lisa was tired last night. But she found it ________ (possible) to sleep because of the noise.

7 . Can you give me an _________(例子)of what you mean?

8 . 根据下面的对话情景，在空白处填入一个适当的句子，使对话的意思连贯、完整。
Lily: Hey, Martha!     1    
Martha: My birthday is on 23rd June.
Lily:     2    
Martha: I want to have a birthday party at my home. Can you come, Lily?
Lily:     3     I can’t wait for that day.
Martha: Great. My mum can cook delicious food for us. What do you like to eat?
Lily:     4    
Martha: OK. You can have your favourite chicken and fruit at my birthday party.
Lily: Thanks. And we can also play games at your birthday party.
Martha:     5     Let’s think about some interesting games for the party.

9 . Before I give you a talk, please let me i________ myself first. I’m Mark from the USA.

10 . 我过去喜欢听音乐， 但我现在对篮球运动感兴趣。
I liked ________ ________ ________ before, but I am interested in basketball now.