No one really knows exactly when the first people arrived in we now know as California.
| A.that | B.which | C.what | D.where |
—Don't use my handkerchief to wipe the table,gentleman.
—Oh, I' m very sorry.I________clearly.
| A.didn't see | B.hadn't seen |
| C.wasn't seeing | D.can't see |
The school rule states that no child shall be,unless________by an adult,allowed out of the school during the day.
| A.was accompanied | B.accompanying |
| C.accompanied | D.being accompanied |
—How do you deal with the disagreement between the company
and the customers?
—The key________ the problem is to meet the demand____
____by the customers?
| A.to solving;making | B.to solving;made |
| C.to solve;making | D.to solve;made |
Prices of daily goods________through a computer can be lower than store prices.
| A.are bought | B.bought |
| C.been bought | D.buying |
The poor little boy________by his heartless parents was seen begging in the street.
| A.abandoning | B.to be abandoned |
| C.having abandoned | D.abandoned |