Neither of them knew what_____ was doing.
| A．other | B．others | C．the other | D．another |
Victor apologized for ____ to inform me of the change in the plan.
| A．his being not able | B．him not to be able |
| C．his not being able | D．him to be not able |
I smell something ____ in the kitchen. Can I call you back in a minute?
| A．burning | B．burnt | C．being burnt | D．to be burnt |
——Let’s go to the movies after supper. OK?
——_______________.
| A．Not at all | B．Why not? | C．Never mind | D．Go ahead |
Mary came in , _____ by her dog.
| A．following | B．to follow | C．followed | D．to be followed |
I failed in the final exam last term and only then ______ the importance of studies.
| A．I realized | B．I had realized | C．had I realized | D．did I realize |