单项选择 适中0.65 引用1 组卷17
—Excuse me, sir. Smoking is not allowed here.
—Oh, sorry. I ________.
—Oh, sorry. I ________.
| A．didn’t know | B．hadn’t known | C．don’t know | D．haven’t known |
21-22九年级下·江苏无锡·阶段练习
类题推荐
The number of people using robots ________ a lot over the past few years and high technology is coming into our life.
| A．has increased | B．increases |
| C．have increased | D．increase |
—Did you watch the basketball game between China and America at eight last night?
—No, I didn’t. I ______ on the Internet at that time.
—No, I didn’t. I ______ on the Internet at that time.
| A．was studying | B．have studied | C．am studying | D．study |
Whenever we ________ a difficult task, we should keep trying until we complete it.
| A．give | B．are given | C．will give |
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