Cloning humans has been _____ in the science world for many years and it is likely to continue .
| A．ridiculous | B．contemporary |
| C．controversial | D．contradictory |
The seller would sell the coat for five dollars, but the customer ______ four dollars．
| A．asked | B．offered | C．charged | D．sold |
—I am sorry I didn’t do a good job．
—Never mind．________, you have tried your best
| A．Above all | B．In all | C．At all | D．After all |
Full use should be _______the natural resources to combat the energy crisis.
| A．made of | B．had of | C．taken of | D．done with |
Our classroom is very clean. Do you know who＿＿cleaned it﹖
| A．was it that | B．it was that | C．was it who | D．he was |
The great hall was crowded with many people, _____ many children _____on their
parents’ laps.
| A．including; seated | B．including; seating |
| C．included; sat | D．included; sitting |