John didn’t know ____ the medicine.A. what to takeB. how to takeC. where to eat
Shanghai is bigger than _____ city in China. A. any B. otherC. 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. wearingC. to wear
---Don’t run in the hallways. ---______,I won’t do it again. A. Sorry B. ExcuseC. No