--_____was the Zipper invented? --It was invented in 1893.
A. What B. When C. How D. Who
He has to stay at home _______ school nights.
A. in B. at C. on D. To
--Could you tell us ______________this evening?
---Eight o’clock.
A. when the band starts playing
B. when will the band start playing
C.where the band starts playing
D.where does the band start playing
The Great Wall is famous, so every year _____people come to visit it.
A. million B. million of
C. millions of D. millions
Please stop _____, it ______ in the hospital.
A. smoking, isn’t allowed
B. smoking, allows
C. to smoke, isn’t allowed
D. To smoke, doesn’t allow
America was ___________ by Columbus(哥伦布).
A. invented B. discovered
C. discovering D. inventing
