It was only after he had read the papers Mr. Gross realized the task before him was difficult to complete.
| A．when | B．that | C．which | D．what |
A library with five thousand books ____________ to the nation as a gift.
| A．have offered | B．are offered | C．has offered | D．is offered |
The experts advised ____________ our army ____________ modern weapons.
| A．equipping; for | B．to equip; with | C．equipping; with | D．to equip; for |
Could I speak to ____________ is in charge of the company?
| A．anyone | B．someone | C．whoever | D．no matter who |
What I need is ___________ book that contains ____________ ABC of oil painting.
| A．a; / | B．a; the | C．the; an | D．the; / |
It was in the Xichang Satellite Launch Center , ________ I had visited, ________ Chang’eⅠwas launched at about 6:05 pm October 24, 2007.
| A．where; that | B．which; that | C．that; where | D．which; where |