若有定义int a=1，b=2；表达式（a++）+（++b）的值是（）。
A、3
B、4
C、5
D、6
参考答案：B
绳子的长度一定，剪去的绳子和剩下的绳子成正比例．______．（判断对错）
用所给词的适当形式填空。
1. Victor _____ (be) in Shanghai last Monday.
2. His brother _____ (have) breakfast at home then went out.
3. He stops _____ (clean) his bedroom and watches TV.
4. Jean _____ (sit) under a tree and singing.
5. Our teacher made us _____ (do) too much homework.
