________they visited the Science Museum，they showed great interest in everything they saw.
A．The first time B．For the first time
C．At first D．At the first time
It is reported that a woman as well as two children ______ from a big fire yesterday.
A．was saved B．were saved
C．had been saved D．have been saved
We laugh at jokes, but seldom _____ about how they work.
A. we think B. think we
C. we do think D. do we think
— Mum why do we eat much vegetable
— Because it is ________ to our health.
A. benefit B. benefited
C. beneficial D. benefits
—Tommy，do the dishes.
—Mum，it’s a girl’s job. I would rather ________the floor.
A．to sweep B．sweep
C．sweeping D．swept
—Have you got any particular plans for the coming holiday?
— Yes. ______, I’m going to visit some homes for the old in the city.
A. If ever B. If busy
C. If possible D. If anything
