21.The A(H1N1) influenza (甲流)was spreading rapidly across the country but it remained under______ control, _______official with the Ministry of Health said in Beijing on Sunday.
A.不填;an B.the; an C.不填;不填 D.the; the
22.Our teachers often tell us, “the harder you study, the more questions you will think of .”
A.asking B.to ask C.being asked D.to be asked