____has been said before, it is not easy to learn a foreign language.
| A．As | B．It | C．What | D．As it |
You would be foolish tothe offer. At that price, it's dirt cheap.
A. turn out B.turn off c.turn down D. turn over
lt seemed such athat people just stood by watching the old lady lying on the ground suffering pains.
| A．mess | B．shame | C．disaster | D．fault |
An increasing number of products made in China aregood quality but much less expensive than those from abroad.
| A．on | B．in | C．for | D．of |
Graduation day is a very special day,I’ll never forget for the rest of my life.
| A．one | B．this | C．it | D．that |
Do you have any ideait takes to successfully reach the top of Mount Everest?
| A．whether | B．how | C．which | D．what |