_______ many times, he finally understood it.
A Told B Telling C To told D Having been told
Edward, you play so well. But Iyou played the piano.
| A．didn’t know | B．hadn’t known |
| C．don’t know | D．haven’t known |
His sister left home in 1998, andsince.
| A．had not been heard of | B．has not been heard of |
| C．had not heard of | D．has not heard of |
--- So what is the procedure?
--- All the applicants before a final decision is made by the authority.
| A．interview | B．are interviewing |
| C．are interviewed | D．are being interviewed |
Shakespeare’s play Hamlet into at least ten different films over the past years.
| A．had been made | B．was made |
| C．has been made | D．would be made |
If nothing ________，the oceans will turn into fish deserts.
| A．does | B．had been done | C．will do | D．is done |