___ a new library___ in our school last year?
A. Was; built
B. Is; built
C. Does; build
Did; build
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Look! A nice picture___ for our teacher.
A.is drawing
B. is being drawn
C. had been drawn
D. draws
The doctor___ for yet.
A. isn’t sent
B. hasn’t been sent
C. won’t be sent
D. wasn’t sent
The Great Wall___ all over the world.
A. knows
B. knew
C. was known
D. is known
It's common knowledge that black tea_____in China more than 600 years ago.
A. is invented
B. was invented
C. invents
D. invent