Write a postcard ___________ the left.[ ]
A. in
B. on
C. at
D. of
答案：B
Does he go to school by bus?[ ]
A. Yes, he do.
B. Yes, he does.
C. No, he does.
一国对另一国的国际不法行为采取相应的强制措施的行为是（）
A.反报
B.报复
C.平时封锁
D.干涉
