________ with the size of the whole earth, the biggest ocean does not seem big at all.
| A．Compare | B．When comparing |
| C．Comparing | D．When compared |
Farmers in poor areas cannot afford to ________ a doctor when they get sick.
| A．attach | B．consult | C．appreciate | D．concern |
Don’t be joking! I just _________ what I said.
| A．promise | B．mean | C．keep | D．notice |
Can you give me a reason to ___________ you absense yesterday?
| A．beg for | B．ask for | C．speak for | D．account for |
A number of foreign guests were invited to the party, but 20 of them didn’t___________.
| A．turn up | B．break up | C．look up | D．make up |
I think you should complain —______,of course, you are happy with the way things are.
| A．if | B．unless | C．as | D．because |