Who is it______have the most important role to play in stopping Yellow River erosion?
A,who B.that C.which D.whom
At the railway station, the mother waved goodbye to her daughter until the train was _______.
| A．out f sight | B．out f reach | C．out of order | D．out of place |
Many Chinese universities provided scholarships for students ______ financial aid.
| A．in favour of | B．in honour of | C．in face of | D．in need of |
The two sportsmen congratulated each other ______ winning the match by shaking hands.
| A．with | B．on | C．in | D．to |
Elizabeth has already achieved success_______ her wildest dreams.
| A．at | B．beyond | C．within | D．upon |
Modern equipment and no smoking are two of the things I like ____ working here.
| A．with | B．over | C．at | D．about |