将下面句子改为同义句.(
1. A. It's rude to point at anyone with your chopsticks.
B. It's _____ _____ point at anyone with your chopsticks.
2. A. We should keep our classroom clean and tidy.
B. Our classroom should _____ _____ clean and tidy.
3. A. It's raining hard, so we have to stay here for a while.
B. It's raining _____ hard _____ we have to stay here for a while.
4. A. The little boy stopped crying and listened to music.
B. The little boy didn't cry _____ _____ and listened to music.
5. A. There is only a desk in the room.
B. There is_____ _____ a desk in the room
