Question

—There _______ a factory here, but now it has changed into a big supermarket.
— You are so lucky to live here.

A．used to have

B．is used to be

C．used to be

D．was used to be

Answer 1

C

試題分析：be used to sth習(xí)慣于某事;used to do sth過去常常做某事. sth be used to do sth某物被用來(lái)做某事。句意：過去這兒有一家工廠，但是現(xiàn)在它已經(jīng)變成了一家大超市�！�—住在這兒你太幸運(yùn)了。結(jié)合語(yǔ)境可知選C。
點(diǎn)評(píng)：used to的用法比較固定，需要注意的是used to do表示過去常常做某事，be used to表示習(xí)慣于某事。前者to是不定式符號(hào)，后接動(dòng)詞原形。后者to是介詞，后接名詞或者名詞性短語(yǔ)。Used to do結(jié)構(gòu)中use相當(dāng)于行為動(dòng)詞，有詞形變化。Be used to中used相當(dāng)于形容詞，無(wú)詞形變化。