______ more attention, the tree could have grown better.
| A． Given | B． To give | C． Giving | D． Having given |
—Why didn't you answer my phone when I phoned you at about 11 p. m. yesterday?
—I ___________and failed to hear the phone.
| A．might have slept | B．must be sleeping |
| C．might be sleeping | D．must have been sleeping |
. —____________ you_________ the editor at the airport?
—No, he__________ away before my arrival.
| A．Have... met; has driven | B．Had... met; was driven |
| C．Did... meet; had been driven | D．Have... met; had driven |
Exercise is__________ as any other to lose unwanted weight.
| A．so useful a way | B．as a useful way |
| C．as useful a way | D．such a useful way |
—What do you think of your nephew?
—He__________ be very naughty but at the same time you poor.
| A．will ; will | B．won't; can't |
| C．may ; may | D．can; can't |
— You must be excited about going to Japan for schooling.
—__________ , but I'm afraid I can't do well because Japanese is poor.
| A．Never mind | B．Well, I ought to |
| C．I don’t know yet | D．Certainly not |