( )1. ____ big success the charity show was! We collected a lot of school things.
A. How B. What C. How a D. What a
( )2. It’s a good habit to ______ all your things in correct places.
A. put away B. put up C. put out D. put off
( )3. He found _____ impossible to finish so much homework in an hour.
A. it B. this C. that D. it’s
( )4. ---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