We have an English concert _____ July 5th each year. [ ]
A. in
B. at
C. on
D. of
答案:C
营业时间对通勤门有什么要求()。
A、通勤门必须随时处于锁牢状态
B、钥匙应由专人妥善保管,不得挂在锁头或随意乱放,不得带出营业室
C、不得用钥匙从外开门
–What ______ that?
-It’s a map.
A.is
B.are
C.am
D.be