If I ___ free tonight, I'll go to the cinema with you.
| A．an | B．was | C．will be | D．be |
He made another wonderful discovery, _________ of great importance to science.
| A．which I think is | B．which I think it is |
| C．which I think it | D．I think it is |
Without facts, we can’t form a correct opinion, for we need to have actual knowledge________ our thinking.
A． which to be based on |
B．which to base on |
| C．on which to base | D．which to base |
I admired my classmate Linda very much . ________ her prettiness, she was smart and helpful.
| A．Except for | B．But for | C．On top of | D．In spite of |
We can’t possibly go. _________ with it’s too far and we can’t afford it either.
| A．To begin | B．Beginning | C．Begin | D．Having begun |
The landlord _________ them white for their flat.
| A．bled | B．rebelled | C．scolded | D．digested |