——____ are you doing for vacation, Jack? –I’m going to Tibet for a week.A. What B. When C. How
We need ____at the hotel for ____because of the heavy snow.
---I think English is ____unimportant subject. ---I don’t think so. It is ____useful tool when we talk with foreigners.
— My family and I will go back to the USA tomorrow. — ____________
-- Must I do my homework right away? -- No, you _____. You_____ do it later. A. can’t, must B needn’t, may C. may not, must D. mustn’t, can
-- Don’t cross the road when the traffic lights are red. -- .