A library with five thousand books _______ to the nation as a gift.
| A．is offered | B．have offered | C．are offered | D．has offered |
_______was not ______she took off her dark glasses _______I recognized her.
| A．It; when; before | B．It; until; that |
| C．That; after; that | D．This; when; after |
The days we look forward to ____at last.
| A．comes | B．to come | C．came | D．coming |
Determination is a kind of basic quality and this is ________ it takes to do jobs well.
| A．what | B．that | C．which | D．why |
_________ the flight to New York will be delayed is _________ I’m especially worried about.
| A．If; what | B．Whether; that |
| C．When; that | D．Whether; what |
With a label _______ to each luggage, it won’t take you long to find yours.
| A．attaching | B．attached | C．being attached | D．to attach |