Facebook has become one of the most popular social websites. Its founder ___________when he started it years ago.
A could never imagine it B must have never imagined it
C must never imagine it D could have never imagined it
More than twenty years____________since he came to teach in this school, and every student and every parent_____him.
| A．have passed,like | B．has passed,likes |
| C．have passed,likes | D．has passed,like |
The meetingfor two hours,but they stillany agreement.
| A．has been going on;haven’t reached |
| B．has been going on; haven’t been reached |
| C．was going on; haven’t reached |
| D．was going on; haven’t been reached |
—Dad, when shall we go to visit my grandpa?
—Grandpa is very busy at present．We'll go to see him whenever __________.
| A．he is convenient | B．he will be convenient |
| C．it is convenient to him | D．it will be convenient to him |
Do you think the idea he stuck ____correct?
| A．to proved | B．to prove | C．proved | D．to proving |
The hungry man eats his food _______he hadn ' t eaten for a week.
| A．as if | B．even though | C．such as | D．like as |