A：-
B：
C：-2
D：2
A
⑴Who are they? ____
⑵Where did you live?____
⑶Is this your grandpa?____
⑷Did he learn Chinese ?____
⑸What's he doing?____
B
A.Yes, it is.
B.They are my grandparents.
C.He's reading a book.
D.No,he didn't.
E.I lived in a small house.
太阳能是____ 能源（选填“可再生”或“不可再生”）．太阳能热水器将太阳能转化内能．目前核电站的核反应堆所发生的是核____ 反应（选填“裂变”或“聚变”）．
要求：（1）请先将题目补充完整，然后作文；（2）立意自定。
的倒数是（ ）
