漫画“捡了芝麻丢了西瓜”启示我们
The _____ population has caused many serious problems.
—_____ the population of the U.S.A. in 2005?—It _____ about 296 million.A. What is; is B. What was; wasC. How many is; was D. How many was; is
The population of Shanghai is larger than _____ of Shenyang.
The traffic in the city _____ be terrible, but now it has improved a lot. I think you will _____ it soon.
—What a nice bicycle! How long have you _____ it ?—For a week.
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