“Do you know that Jack ______ a postman for about six years？” “Yes, I see.”
| A．has become | B．has turned |
| C．has changed | D．has been |
The doctors did all they could _______ him _______.
| A．to bring; back to life | B．bring; back to life |
| C．bring; to life | D．to bring; to living |
-- You speak very good English!
-- Thanks. I_______ English since I was a small boy.
| A．studied | B．had studied | C．was studying | D．have been studying |
_______ my teachers’ help, I wouldn’t have succeeded.
| A．Thanks to | B．Owing to | C．But for | D．As to |
Not until _______ 18 years old _______ a right to vote.
| A．have you reached; can you have | B．have you reached; you can have |
| C．you have reached; can you have | D．you have reached; you can have |
--Who is the person talking with you just now?
-- Well, if you ______ know, his name is David.
| A．may | B．can | C．must | D．shall |