1. The bag is too ____. I can,t put the pencil-box in.
A. heavy B. full C. light D. empty
2. I have no trouble ____English.
A. speak B. spoke C. speaking D. to speak
3. Listen! There is a loud knock ____the door. Who can it be?
A. from B. on C. in D. by
4. She went to the door and ____the bell.
A .called B .called up C .rang D .rang up
5. I never ____my dog and it is always ____to others.
A .frighten friend B .frightened friend C .fr