—Betty has worked hard at her subjects _________ she failed in the final exam.
—That's true. We should learn from Betty.
A.until B.though C.unless D.if
In the summer camp, the boy learned to _________ all kinds of difficulties.
A.manage B.protect C.remain D.control
We couldn't buy anything because _________ of the shops in the street were open.
A.all B.both C.nothing D.none
It's well-known that Hefei _________ the subway era (地铁时代). Traffic is getting more and more convenient.
A.enter B.will enter C.has entered D.entered
My son drove me _________, asking me to buy him a new bicycle, and I finally gave in.
A.lonely B.excited C.nervous D.crazy
Till now, I still remember _________ words said by elder schoolmaster on our graduation ceremony.
A.strongly B.luckily C.probably D.clearly
