Is this _____ ?
| A．you are looking for | B．that you are looking for |
| C．what are you looking for | D．what you are looking for |
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 |
Will you see to _______ that my children are taken good care of while I am away?
| A．it | B．me |
| C．yourself | D．them |