Nobody knows for sure what effect global warming has ___ our environment in the long term.
| A．of | B．with | C．for | D．on |
I shall never beat John at tennis; we are clearly not in the same _____.
| A．set | B．band | C．group | D．class |
As soon as Charles had _____ a little from his surprise, his one thought was to get away.
| A．returned | B．absorbed | C．dissolved | D．recovered |
He _____ the place where he had been bitten by an insect.
| A．snatched | B．scratched | C．squeezed | D．stretched |
Trains stop here in order to _____ passengers only.
| A．get off | B．pick up | C．pull up | D．pull in |
This album is _____ as it was the only one ever signed by the President.
| A．unusual | B．unique | C．rare | D．special |