Tom can play ________ piano,but he can’t play ________ chess.
This film isn’t _______ so that nobody is ________ in it.
We have been skating ________ two yeas ago.
--Would you mind passing me the book? --________. Here you are.
--How long have you read this book? --_________________.
--Where is your father? --He ________ Shanghai. He’ll be back next week.