1._____, people can't afford to buy expensive things.
A. With the prices of daily goods going up
B. With the prices of daily goods gone up
C. The prices of daily goods go up
D. With the prices of daily goods go up
2.The ticket ______ you to a free meal in our restaurant.
3.The assistant and graduate student ______ check the exercise books.
D. to help
4.I remember ______ the piano beautifully when he was a child.
B. him to play
C. him to have played
D. him playing
5.The house was not very old. It ______.
A. ought not to have knocked down
B. ought not to have been knocked down
C. ought not to knock down
D. ought not be knocked down