Though my sister is very cute, she is not so _______ as me.
A.confident B.more confident C.less confident D.the most confident
—_______ has Tianhe Square been open to the public?
—Since 2015.
A.How soon B.How long C.What time D.How often
I _______ leave now, or I will miss the meeting.
A.can B.may C.might D.must
My sister went to London _______ May, and came back _______a cold evening last week.
A.in; on B.on; on C.on; in D.in; in
Some farmers taught _______ how to feed chickens.
A.our B.we C.us D.ours
The post office is quite far from here. It will take you half _______ hour to get there by _______ bus.
A.an; 不填 B.a; an C.a; 不填 D.不填; 不填