They usually spend two hours _______ their homework every day.A. do B doing C to do
You’d better _______smoking, ______you will get ill.
The long story made him ________.
Some little boys have difficulty ______their hearts into the lesson for a long time.
--How many members are there on the team? --Eight this term. But there will be ten _________ next term. I’m not quite sure.
“Do you mind if I sit here?” “_____ .It’s for Mr. Brown.”