4. Read this letter and tell me what you       (理解) it.

3. This publishing firm is planning       (一套新系列) school textbooks.

2. The classes will       (輪流) to visit the exhibition next week.

1. Don’t       (推遲) until tomorrow what can be done today.

7. My uncle did a beautiful       (水彩畫(huà)) of a sunset while in Mexico.

6. Our income has got smaller,so we must be       (現(xiàn)實(shí)的) and give up our car.

5. All these       (展覽) were organized by the company.

4. They have replanted many areas with rare and        (不尋常的) plants.

2. They greeted him with many e        of  pleasure.

1. The farmer met with misfortune; his crops were d       by  a storm.