I still remember there used to be _______ underground cave. My friends and I often had fun in_______ 18-foot-deep cave.
| A．an; the | B．a; the | C．an; an | D．a; an |
相关试题
This math problem is too difficult. Can you show me________, George?
| A．what to work out | B．to work i t out |
| C．how to work it out | D．how to work out it |
—Who is the little girl in the picture?
—It's me. The picture __________10 years ago.
| A．took | B．is taken | C．has taken | D．was taken |
—Mom, when can I go out to play football?
—Finish your homework first, or I ________let you go out.
| A．don't | B．didn't | C．won't | D．haven't |
What time do you expect her________?
| A．arrive | B．is arriving | C．arriving | D．to arrive |
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