_____ my teacher’s help, I made great progress. —You should thank her. [ ]
Could you tell me ________?—Of course, last night.
The black hat is sale. You can buy one only two dollars.[ ]
How long ________they_________? —Sorry, I don’t know. But I know that Mr. Chen is going to _______a nurse next month.
My father to Nanning many times, so he knows it well.