---What is that? Is it an English learning machine?
---Yes. It ________ us to improve our English.
A. is used for helping B. used to help C. used to helping
Yesterday morning, when I got home, my son ________.
A. slept B. was sleeping C. is sleeping
---Where would you like to go for a vacation?
---I’d like to go ________.
A. somewhere interesting B. interesting somewhere C. interesting anywhere
_________ time we had at the party!
A. How wonderful B. what wonderful C. what a wonderful
---What should we do first if we want to develop our village?
---Lots of new roads ________, I think.
A. must built B. can build C. must be built
---Which house do you think is Uncle Lee’s?
---I think the one _________ door faces south is his.
A. whose B. which C. that
