—_____ 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
含有与字母Aa相同元音音素的一项是
I don’t know _______________.
What clean classroom! -Yes , It _________ every day .
-What’s your favorite subject? -Art . _________makes me more exciting than it does.
You can’t improve your English_________ you work harder than before