_____ have you been swimming For five years.

These boxes are too heavy for me to carry— Here, I’ll give you a hand ________ them

The Yangzhou Taizhou International Airport ___in 2012 and it has been in use for about 4 years.

I stopped laughing when I realized my father was_______ about it.

Mr. and Mrs. Scott prefer a trip in a smalltown toin so largea city as New York．