To his mind, the collaborative development of Beijing, Tianjin and Hebei province is to solve the problems _____ Beijing faces, such as overpopulation, traffic jams, and etc.
| A．that | B．whether | C．when | D．why |
I went to bed very late last night, _____, early the next morning.
| A．or rather | B．at least | C．at most | D．in a word |
Whenever I met him, _____ was fairly often, I like his sweet and hopeful smile.
| A．what | B．that | C．which | D．when |
She took the boy _____ the hand and led him _____ the zero.
| A．in…by | B．on…at | C．at…in | D．by…round |
We _____ a pleasant journey but for the rain.
| A．would have | B．will have | C．had had | D．would have had |
— Shall I go and buy two more bottles of beer?
— No, I’ve already bought twenty. That _____ be enough for us two.
| A．can | B．may | C．ought to | D．might |