1. 科学家们已经在治疗癌症方面取得了重大突破。(make a breakthrough)

5. It’s time that the government 　　　　　(take) measures to protect the rare birds and animals.

4. I suggested that he 　　　　　(start) right now.

3. If I 　　　　(get) there earlier, I 　　　　　(meet) her.

2. The broken bike was found 　　　　　(abandon) by the river side.

1. 　　　　　(occupy) in writing a report, he couldn?t go with us.

3. The plan for a voyage had to be 　　　　　　　because of its high cost.

2. The guard was punished for 　　　　　　his post.

1. You cannot 　　　　　　smoking too soon.

3. 　　　　　　the serious drought, the wheat harvest this year was good.

C. abandon/desert/quit