5. (A). We should discuss it.

　　(B). They didn’t even take it with them.

　　(C). Do you think they will let us talk?

　　(D). We suspect that it is not very big.

　　6. (A). He conducted an experiment.

　　(B). He repaired the car.

　　(C). He went shopping.

　　(D). He did some house work.

　　答案：

　　A D

　　音频文本:

　　5. Let’s at least talk about it.

　　6. He vacuumed the rug and polished the furniture.