本学期全国各地学校因新冠病毒（novel coronavirus)疫情影响而延期开学，开展“停课不停学”线上教学活动。请根据下表提示和你的切身体会，谈谈在线学习（online learning)的利弊。
a comfortable learning environment
replay the lessons
bad for eyes
influenced by computer games
短文首句：We have taken two-month online learning because of novel coronavirus.
My sister went to London ____May 25th, and come back ____a cold evening last week.
A.on; on B.in; on C.on; in D.in; in
--- Is that man Mr. Green ? (2016•盐城市)
--- It ______ be him . He has gone to Paris on business .
A.may B.must C.can't D.shouldn't
Li Ming will be . His parents are going to have a party for his birthday.
A.sixteen; sixteenth B.sixteenth; sixteenth
C.sixteen; sixteen D.sixteenth; sixteen
My grandma’s hobby is________ cooking ________ watching TV. It is square dancing.
A.not only; but also B.neither; nor C.both; and D.either; or
－Many boy students think math is ______ English.
－I agree. I’m weak in English.
A.much difficult than B.so difficult as
C.less difficult than D.more difficult than
— Excuse me. How can I get to Shanzihe Airport?
— Take Shanghai Road, follow the __________ and you can’t miss it.
A.way B.traffic C.notices D.signs
Zootopia, the cartoon, is popular ______ there are many lovely animals in it.
C.if D.because of