Mr Smith ____ a book about China last year but I don’t know if he has finished it .
A. has written B. wrote
C. had written D. was writing
The skirt ___ her 100 dollars. If I were her， I surely won’t take it. That’s too extravagant.
A. took B. costed C. cost D. spent
---Hi， Mike . I saw Jim in the zoo just now .
---It ____ be him. He has gone to Beijing .
A. can’t B. must C. mustn’t D. can
He found _____ impossible to finish so much homework in an hour.
A. it B. this C. that D. it’s
It’s a good habit to ______ all your things in correct places.
A. put away B. put up C. put out D. put off
____ big success the charity show was! We collected a lot of school things.
A. How B. What C. How a D. What a
