—How did you pass the challenging test?
—It was a long time________I found a series of suitable methods.
| A．when | B．until |
| C．since | D．before |
I ____ to send him a telegram to congratulate him on his marriage, but I ____ it.
| A．hoped, hadn’t managed | B．has hoped, didn’t manage |
| C．hope, don’t manage | D．had hoped, didn’t manage |
----I’m sorry, but there is no smoking on this flight. ----Oh, I _____ that. Sorry, I won’t again.
| A．don’t know | B．didn’t know |
| C．won’t know | D．haven’t known |
A sheep ______on this kind of special grass which usually grows much faster than on ordinary.
| A．fed; one | B．feeds; the one |
| C．fed; that | D．feeding; it |
______ is a fact that English is being accepted as an international language.
| A．There | B．This | C．That | D．It |
I hate ______ when people talk with their mouths full.
| A．it | B．that | C．these | D．them |