I have lost one of my gloves. I _____ it somewhere.
| A．must drop | B．must have dropped |
C．must be dropping | D．must have been dropped |
Americans eat ______ vegetables per person today as they did in 1910.
| A．more than twice | B．as twice as many |
| C．twice as many as | D．more than twice as many |
—Would you like ______, sir?
— No, thanks. I have had much.
| A．some more oranges | B．any more oranges |
| C．some more orange | D．any more orange |
–I wonder how much you charge for your services.
-The first two are free the third costs $30.
| A．while | B．until | C．when | D．before |
you have seen both fighters, will win?
| A．Since; do you think who | B．As; who you think |
| C．When; whoever | D．Since; who do you think |
He was busy writing a story, only once in a while to smoke a cigarette.
| A．to stop | B．stopping | C．to have stopped | D．having stopped |