A good storyteller must be able to hold his listeners’ curiosity__________he reaches the end.
| A．when | B．unless | C．after | D．until. |
_______ is well known _______ Hong Kong returned to China on July 1st, 1997.
| A．It, that | B．As, / |
| C．As, as | D．It, which |
The Parkers bought a new house but ______ will need a lot of work before they can move in.
| A．they | B．it |
| C．one | D．which |
It used to be thought _____ the Earth was flat.
| A．as | B．when |
| C．since | D．that |
He made _____ known to his friends that he didn’t want to enter politics.
| A．that | B．it |
| C．himself | D．him |
Why shouldn’t I buy a new coat — I haven’t bought _____ for five years.
| A．it | B．that |
| C．one | D．which |