—What’s his monthly income?
—Well, he ________ earn as ________ as 4,000 dollars a month when his business runs well.
A．can; muchB．might; manyC．must; farD．should; high
A
考查情態(tài)動詞和詞義辨析�！八脑率杖胧嵌嗌�？”“噢，當(dāng)他的生意做得好的時候，他一個月能賺4000美元�！眂an“能夠，可以”；might沒有can的可能性大；must“必須”；should“應(yīng)該”。much“多”，修飾不可數(shù)名詞，as much as“多達(dá)”。故選A。
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