Passengers on board aren't allowed _____ calls during take-off．
| A．making or receiving | B．to make or receive |
| C．to have made or received | D．having made or received |
―What can I do for you?
―I'd like to buy a present for my son, ________ at a proper price but of great use.
| A．one | B．the one | C．which | D．that |
A long time ________ a person, which is really a truth.
| A．examines | B．checks | C．tests | D．experiments |
five minutes before the last bus left, we arrived at the station.
| A．There were; to go | B．With; to go | C．It was; left | D．It had; left |
________ is known to us is that time is limited and precious.
| A．What | B．That | C．It | D．As |
―I went to the beach and got plenty of rest and sunshine.
― You looked tired last time I saw you .
| A．I had hoped so. | B．Really ? |
| C．I’m glad you did. | D．That sounds a good idea. |