You can use that ____ tire and it is ______ .
| A．spare; free | B．spare; spare | C．free; free | D．free; spare |
_______ is well known _______ Hong Kong returned to China on July 1st, 1997.
| A．It, that | B．As, / |
| C．As, as | D．It, 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 |
“________, sir？” “No. Go ahead.”
| A．May I use your dictionary |
| B．Do you mind if I use your bike |
| C．Would you mind opening the window |
| D．May I have a look at your new book |
Why shouldn’t I buy a new coat — I haven’t bought _____ for five years.
| A．it | B．that |
| C．one | D．which |