We all know that, , the situation will get worse.
| A．not if dealt carefully with |
| B．if not carefully dealt with |
| C．if dealt not carefully with |
| D．not if carefully dealt with |
An awful accident_____，however，occur the other day.
| A．does | B．did | C．has to | D．had to |
Greenland， _____ island in the world，covers over two million square kilometers.
| A．it is the largest | B．that is the largest | C．is the largest | D．the largest |
_____， he often forgot to turn off the lights.
| A．Even better | B．Strange | C．However | D．Fortunately |
I
t was not until she had arrived home_______ her appointment with the doctor
| A．did she remember | B．that she remembered |
| C．when she remembered | D．had she remembered |
—Where was it_____ the road accident happened yesterday ?
--In front of the market.
A．whe n |
B．that | C．which | D．how |