—Do you know these kinds of animals are in danger?
—Yes. Our country is trying to ________ them.
A. kill B. buy C. Protect
My mother planted lots of ________ in the garden.They are yellow, white, red and pink.
A. grass B. roses C. trees
You’d better ________ so late at night. It’s bad for your health.
A. not stay up
B. not to stay up
C. no staying up
— Could you ________me your bike, please?
— Sorry, I’m using it. You can borrow Jack’s.
A.lent B. borrow C. lend
. —How can we succeed?
—No one can be successful ________ hard work.
A. with B. without C. For
They will ________ clean the street this Saturday morning.
A. help B. to help C. helping
