A 3﹣kilometer﹣long bridge ________ in our hometown three years ago．（ ）
A．has builtB．is builtC．was built
(2014)A lot of books to the poor students in the countryside last year.
| A．send | B．were sent |
| C．sent | D．are sent |
People in Lanzhou are glad that a modern subway in several years.
| A．will complete | B．will be completed |
| C．has completed | D．is completed |
It is said that an A-shaped tower in the center of the city next year.
| A．builds | B．will build |
| C．will be built | D．is built |
--- Do you know if Tom_______ to Lily’s birthday party last Sunday?
--- Sorry, I've no idea.
A. is invited
B. was invited
C. invited
--- Do you know the accident about the flight MH370?
--- Yes. It ______yet at present.
| A．isn’t found | B．didn’t find |
| C．wasn’t found | D．wasn’t founded |