What shall we use for power when all the oil in the world ?
| A．gave out | B．was given out |
| C．has given out | D．has been given out |
Is this museum ___ some foreign friends visited that day?
| A．where | B．which | C．that | D．the one |
Edison never stopped ___ new and better ways to do things.
| A．to search for | B．searching for | C．to search | D．searching |
Although it’s raining, ___ are still working in the fields.
| A．they | B．but they | C．and they | D．so they |
Is ___ possible to fly to the moon in a spaceship?
| A．now | B．man | C．that | D．it |
Of all the boys, Tom spent __ time and made ___ mistakes.
| A．less, few | B．much, many | C．fewer, less | D．the least, the fewest |