. There is such an occasion ___________ we know lots of words, but we can’t choose a suitable one to express ourselves.
| A．where | B．when | C．which | D．what |
相关试题
Brian is so kind that he often gives me a ________ when I'm in trouble.
| A．reply | B．seat | C．hand | D．reason |
—What do you have for breakfast?
—I often have ________ or ________.
| A．breads; noodles | B．bread; noodles | C．breads; noodle | D．bread; noodle |
My school isn't far from here. It's only ________ walk.
| A．fifteen minutes | B．fifteen minutes' | C．fifteen minute's | D．fifteen minute |
— Who is in the reading room? The lights are all on.
— ___________.
| A．Nothing | B．None | C．No one | D．No |
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