Some aspects of a pilot's job      be boring, and pilots often      work at inconvenient hours.
A.can ; have toB.may ; can
C.have to; mayD.ought to; must
A

試題分析:考查情態(tài)動(dòng)詞:第一空填can,表示“有客觀的可能性”,第二空填have to表示不得不,句意:某些方面,飛行員的工作可能很乏味,飛行員經(jīng)常在不方便的時(shí)候工作。選A。
點(diǎn)評(píng):考查情態(tài)動(dòng)詞,要看每個(gè)情態(tài)動(dòng)詞的基本意思,還有的情態(tài)動(dòng)詞不止一個(gè)意思,如:can可以表示“能夠,可以,有可能”做題時(shí)注意看符合哪個(gè)意思。
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