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
________by the beauty of nature，the girl from London decided to spend another two days on the farm.
A．Attracting B．Attracted
C．To be attracted D．Having attracted
It shows that ______ knowledge of first aid can make _____ real difference.
A a. /; a B. /; the
C. the; the D. the; a
