Gun control is a subject ______Americans have argued for a long time .
| A．of which | B．with which |
| C．into which | D．aboutwhich |
----Why didn’t you come to meet me, Bill?
----Sorry, dear. But I really forgot where I was _____ to meet you.
| A．demanded | B．supposed | C．delighted | D．squeezed |
She still remembers Beijing University， ____________she graduated five years ago.
| A．from which | B． from where | C．which | D．不填 |
_______ from what he did, he isn’t a person to depend on..
| A．Judge | B．Judging | C．Judged | D．Judges |
The students left the room _______all the lights on.
| A．with | B．and | C．but | D．when |
Roses need special care ______they can live through winter.
| A．because | B．so that | C．even if | D．as |