-----Is this the first time you _____Chengdu ?-----No. But the first time I _____here, the city wasn’t so beautiful.
With so much homework to do,David told his sister_____so much noise.
They talked for about an hour of things and persons __________ they remembered in the school.
It was because of his kind nature _______I fell in love with Peter.
They aren’t a good team, but they refuse to _____ and accept the defeat.
The number of guests invited to the party______ fifty, but a number of them______ absent.