Don’t you consider _____ important to learn English well?
| A．不填 | B．this | C．that | D．it |
These are questions ______ by history.
| A．left over | B．left off | C．leaving out | D．leaving behind |
___that she’s by law old enough to get married, I don’t see how you can stop her.
| A．Having seen | B．To see | C．Seeing | D．Seen |
He bought some books, ______ were expensive.
| A．most of which | B．the most of which |
| C．most | D．the most of that |
The city was difficult ________, _________ was defended by an army of 6,000 men.
| A．to be taken; which | B．to take; that |
| C．to take; which | D．to be taken; that |
---- Could you do me a favour and take the box up to the six floor? ---- ______. No problem at all.
| A．With please | B．My pleasure | C．For pleasure | D．at your pleasutre |