—Are you Lucy King?
—No,______. [ ]
A. I'm
B. I am
C. I'm not
D. I isn't
答案：C
“宁为战死鬼，不作亡国奴”。全国性抗日战争开始于（）
A.九一八事变
B.七七事变
C.八一三事变
D.西安事变
Be careful when you go ____ the street because the traffic
is very busy at the moment.
A．across
B．behind
C．between
D．over
