Elephants are very friendly and they like______ grass.
A. eat
B. to eating
C. to eat
Shanghai is bigger than _____ city in China.
A. any B. other C. any other
Listen! Who ____ behind the tree?
A sings
B. is singing
C. singing
His mother ___ in a hospital, but she ____ these days.
A. works, isn’t working
B. is working, works
C. is work, doesn’t work
The teacher tells us not ______a hat in class.
A. wear B. wearing C. to wear
---Don’t run in the hallways.
---______,I won’t do it again.
A. Sorry B. Excuse C. No
