I can’t quite remember ______you started doing the work
| A．that it was when | B．that when it was |
| C．when was it that | D．when it was that |
相关试题
There are ____ to show that a new,different city is coming out of its dark past.
| A．signals | B．marks | C．signs | D．symbols |
—What’s up? You look down.—I have piles of papers ________, but I type so slowly.
| A．to be typed | B．typed | C．to type | D．being typed |
—I haven't got a mobile phone. 
—I think you should have . It's useful for you.
| A．one | B．this | C．that | D．it |
第一节：单项填空(共15小题；每小题1分，满分15分)
Of all the subjects, I like ______ physics best because it gives us ______ useful knowledge of things in science. And I long to turn ______ scientist in the future.
| A．the ; a ; a | B．/ ; an ; / | C．/ ; a ; / | D．the ; / ; / |
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