Why did you go to the wrong class,Mr. Wang " "Well, I forget _______ I was supposedto go to."

Does Liu Hua serve in the army?—-No,but he ___in the army for three years

Your watch is very nice.—__________________________ .

Do you need any help, Lucy? — Yes. The job is _______ I could do myself.

Nancy got up early this morning catch the early bus to the city.