25．I’m afraid I’m not ____ to help with the show, for I am fully occupied with my own project．
A．dependable |
B．convenient | C．available | D．accessible |
Scientists are trying to develop a special material, ________ they will make use of in
spacecraft.
| A．it | B．one | C．that | D．what |
He was absent for two weeks, so he had a lot of homework to ________.
| A．make up | B．put up | C．take up | D．pick up |
--- Do you think he will do me a favor?
--- As far as I know, he is the last one to help others. He _______ be prepared to give you a hand, though.
| A．might | B．must | C．can | D．should |
Those lovely flowers were ______ for your mother for her 57th birthday, but as she is away, I would be glad if you accept them.
| A．committed | B．intended | C．supplied | D．scheduled |
You look not a bit older than you did 10 years ago. How do you _______ so young?
| A．change | B．grow | C．stay | D．become |