单选题
—You look very pale. You __________ very tired. — I didn ’ t sleep at all last night.
题目答案
A
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—You look very pale. You __________ very tired. — I didn ’ t sleep at all last night.
America is an __________ country. You can hear __________ everywhere.
Mr. Smith is in good health now for it is quite a long time since he __________.
You should try to write __________ eve n when you ’ re busy. As you know, practice makes perfect.
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