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
What do you usually do____ Sunday mornings.
A. in B. at C. on
--________does your uncle do? - He is a teacher.
A. What B. Where C. How
