I ______ in the hospital yesterday. I had to look after my sick mother.

—Look at the clouds! I think it’s going to _______. —Oh, we have to run home.         

Mr. Black isn’t here. He ________ to Chongqing.

How many films ________ you ________ recently? None.

Mr. Green _______ to Beijing two weeks ago. He ______ there many times.