—I wonder why Sara looks worried today.
—I'm not sure，but she a small accident driving here.
| A．could have | B．might have |
| C．might have had | D．must have had |
----Is there anyone who is going to the Great Wall.
----________.
| A．None | B．No one | C．No | D．Not any |
-The weather is too cold ____ March this year. —It was still ____when I came here years ago.
| A．for; colder | B．in; cold | C．in; hot | D．for; hotter |
——When did it begin to snow? ——It started ____ the night.
| A．during | B．by | C．from | D．at |
—What do you think of the concert? —I really enjoy it. I didn’t expect it was ____ wonderful.
| A．as | B．more | C．most | D．very |
He was sentenced to death ______ what he has stolen from the bank.
| A．that | B．since | C．because | D．because of |