All Mrs Smith's efforts to tidy the room were _____ because her grandson soon made a mess of it again.
| A．at all costs | B．at random |
| C．in vain | D．in return |
It was from only a few supplies in the nearby village ______ the hostess cooked such a nice dinner.
| A．where | B．that | C．when | D．which |
--- I hear a number of workers in the factory ______ out of work.
--- Yes, and the number _______ quite huge.
| A．are; is | B．is; are | C．is; is | D．are; are |
The army officer _______ his men to fire as soon as the enemies came up.
| A．requested | B．commanded | C．begged | D．suggested |
The old pianist wouldn’t listen to our repeated request that he _______ in public again.
| A．played | B．play | C．would | D．was going to play |
The actress looked so charming in the beautiful Vera Wang dress that photographers took _______ pictures of her.
| A．a great many | B．mass of |
| C．the number of | D．a large amount of |