问题
填空题
根据句意及首字母提示补全单词
1. These questions are very d_____________.
2. They play football e__________ day.
3. D________ she like sports?
4. That s__________ interesting.
5. I don't w____________ TV in the evening.
6.-Let's play tennis.
-No, it's b______________.
答案
1. difficult 2.every 3.Does 4.sounds 5.watch 6.boring
，乙烯酮在一定条件下可与下列试剂加成，其产物不正确的是（ ）
