两个“高一英语”单选题---高手进5、6
5、Theproblemisverydifficult.
I’mafraidyoucan’tworkitoutnow.
_____Ifailthistime,Iwilltryitagain.
A:AsifB:SinceC:EvenifD:Though
6、Visitors_____nottosmokeinthemuseum.
A:willrequestB:request
C:arerequestingD:arerequested
选出答案,并解释原因
为什么不选答案D.