－Who is the girl standing over there?
－Well, if you ______ know her name is Mabel.
| A．may | B．can | C．must | D．shall |
—Could you do me a favor?
—It depends on _______ it is.
| A．which | B．whichever | C．what | D．whatever |
—It’s thirty years since we last met.
—But I still remember the story, believe it or not,_______ we got lost on a rainy night.
| A．which | B．that | C．what | D．when |
______ you'll be able to succeed mainly depends on ______ you do and ______ you do it.
| A．If; what; why | B．Whether; how; why |
| C．That; whether; how | D．Whether; what; how |
What you said just now ____ the matter we are discussing.
| A．have something to do at | B．has something to do with |
| C．had something to do with | D．has been something to do with |
A library with five thousand books ______ to the nation as a gift.
| A．is offered | B．has offered | C．are offered | D．have offered |