.
As a matter of fact, ___is a hard job for the police to keep order in an important football match.
| A．this | B．that | C．there | D．it |
It’s very surprising that Lucy _____ German so quickly—she hasn’t lived there very long.
| A．picked up | B．looked up | C．put up | D．made up |
The internet has made ____ possible for everyone to talk with friends miles away.
| A．that | B．this | C．one | D．it |
My mind wasn't on what he was saying so I'm afraid I ______ half of it.
| A．was missing | B．had missed | C．will miss | D．missed |
--- Can you believe I had to pay 50 yuan for a haircut?
-----You should try the barber’sI go. It’s only 10.
| A．as | B．which | C．where | D．that |
One of our rules is that every teacherwear school uniform while attending the school flag-rising ceremony.
| A． might | B． shall | C． could | D． will |