Choose and fill.(选词填空)
1.My sister is a _______(dance, dancer).
2. May’s mother often _______( reads, reading) books on Saturday.
3. Swimming ______ (on, in ) the sea is very interesting.
4.Bill’s computer is in the water. He ______( can, can’t) play it any more.
5. My mother is talking ______ ( in, with) my father.
6. Ben and Kitty ______( are, is ) good at roller skating.
7. I like _______ (ski, skiing). I can _______ ( ski, skiing) very fast.