The new lecture course differs from the old one, ________ the students aren't required to attend lectures.
| A．which that | B．that | C．which | D．in which |
-----“_____ when does the pub stay open?”
---- “About midnight.”
| A．Since | B．Before |
| C．Until | D．After |
“Shall we stop for lunch _____ shall we drive on?”“Let’s stop for lunch, but the driver can’t drink _____ drive.”
| A．and, and | B．or, or |
| C．and, or | D．or, and |
I’m _____ at sums than Jean, but better at history.
| A．more | B．less |
| C．worse | D．cleverer |
“Are you satisfied with his answer?”“Not at all. It couldn’t have been ____.”
| A．better | B．worse |
| C．more | D．less |
Tom’s mother always told him not to smoke again, but _____ didn’t help.
| A．he | B．it |
| C．which | D．as |