I ate ____sandwich while I was waiting for ____20:08 train.
| A．the; a | B．the ;the | C．a; the | D．a; a |
相关试题
The e-mail, as well as the telephone, ______ an important part in 
daily communication.
| A．is playing | B．have played | C．are playing | D．play |
Jumping out of ______airplane at ten thousand feet is quite _____exciting experience.
| A．/ ；the | B．/ ；an | C．an；an | D． the ; the |
What they need ______ enough money, while what we need ______ enough workers.
| A．is; is | B．are; are | C．is; are | D．are; is |
– Do you know William failed the exam, Jenny?
-- _____? As far as I know, he is always working hard.
| A．So what | B．How come | C．Why not | D．What for |
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