—Will you _____ our pet dog while we are on vacation?
— Well, that ought to be no problem.
| A．keep an eye of | B．keep an eye on |
| C．have an eye for | D．have an eye on |
How can you expect him to make any progress _____ you never give him a chance to have a try?
| A．when | B．unless |
| C．even though | D．until |
It is amazing that the little boy can swim ________the river ________100 meters in width.
| A．across; measuring | B．over; measured |
| C．across; measured | D．through; measuring |
We used to work in the same office and we____ often have coffee together, which I missed
so much years later．
| A．would | B．should |
| C．could | D．might |
— Have you ________ how much the trip will cost? —I’m working on it; just have a little patience.
| A．added to | B．counted on |
| C．added up to | D．figured out |
I invited him to dinner, but he___ my invitation with thanks.
| A．approved | B．declined |
| C．ignored | D．abandoned |