_______me, he walked up to me, smiling.
| A．To , see |
| B．For seeing |
| C．On seeing |
| D．Because seeing |
Information technology is taught in most schools，__________we have entered the information society.
| A．so | B．while | C．still | D．for |
Scientists say it may be five or six years __________it is possible to test this medicine on human patients.
| A．since | B．after | C．before | D．when |
Parents should take seriously their children’s requests for sunglasses __________.
| A．because | B．though | C．unless | D．if |
—Shall we meet tonight?
—Sorry,I’m busy.How about_________day?
| A．every other | B．the other | C．any other | D．some other |
—I have learned that a large new building will be set up__________the Twin Towers once stood.
—So have I.But the American people haven’t yet got over the shock of September 11.
| A．where | B．when | C．which | D．that |