六年级英语句子选择填空!填序号就行了

六年级英语句子选择填空!填序号就行了
1.How can the water_____vapour?
A：becoming B：becomes C：become
2.-Where does the rain come from?
-_________
A：It comes from the clouds.
B：Yes,it is.
C：No,it isn’t.
3.-How can the water become vapour?
-_________
A：I’m going to the sky.
B：He can to there.
C：The sun shines and the water be-comes vapour.
4.He thinks it ____ cooler up in the sky.
A：may B：be C：may be
5.Many little it water drops _____ a cloud.
A：becomes B：become C：becoming
知道一个也可以说说讷