9. My grandpa never ___________.　　　 10. Katrina usually___________.

7.Girls always ___________.　　　　 　8. Most boys often ___________.

5. Lucy usually___________.　　　　 6.Some students often ___________.

3.My father often ___________.　　 4. My friend sometimes___________.

　What do you usually do on weekends?

1. I often go out for a trip.　　　　　 2.My brother usually ___________.

讲析：4. 学生的功课肯定不止三门，所以答案应该是C。

9. work作为 “工作”时，是个不可数名词，因此，只能用some; a lot of修饰。所以答案是A。

5. look after 意为 “照料、看护”。例如：

She can look after herself.

她能照顾自己了。

The twins are new. We must look after them.

那对双胞胎是新来的，我们应该照顾他们。

You must look after your things or they will be lost.

你们必须照看你的东西，否则会丢的。

9. right　 10. father　

讲析：4. at the moment 意思是“现在”(=now)。例如：　

At the moment she’s on holiday, but she’ll be back tomorrow.

现在她正在休假，不过她明天就回来。

I know his address, but I can’t think of it at the moment.

我知道他的地址，但我现在想不起来。

What is the most popular piece of music at the moment?

目前最流行的音乐是什么？

12. 副词politely 修饰动词 said。