--Don’t you think the weather is becoming hotter and hotter year by year?
---Yes. I think it’s one of __________ problems in the world these years.
A. serious B. more serious
C. the most serious D. the seriousest
--- What’s your plan for the summer holidays?
---I’ll go to Beijing _________ the school term ends.
A. in order that B. so that
C. even though D. as soon as
---Look at the black hat. It must belong to Mrs. King.
---No, it _____ be hers. I saw an old man put it here just now.
A. mustn’t B. may C. can’t D. must
---Excuse me, I bought a computer from your shop last week, but it doesn’t work now.
---It doesn’t matter, madam. It _________ today.
A. will repair B. has repaired
C. will be repaired D. will repaired
---Who will go to America this summer, you or your brother?
---_________. We will go to Hainan together.
A. All B. Neither C. Both D. Either
---How do you often improve your English?
--- I often practice _____ English with foreigners?
A. speaking B. speak C. to speak D. spoke
