Everyone knows that _____ is dangerous to play with fire, but _____ is difficult is to prevent children from playing with fire.
A. it, it B. what, what
C. it, what D. what, it
—I am thinking of the test tomorrow. I am afraid I cannot pass this time.
—_________! I am sure you will make it.
A. Go ahead B. Good luck
C. No problem D. Cheer up
As the clock struck nine, players ______their positions and the match began.
A. stood up B. took up
C. made up D. set up
—Lucy, read this book, I ____ that you’ll be fond of it.
—OK. I’ll read it after I have finished my homework.
A. order B. guarantee
C. prove D. reveal
The air is deadly polluted because some factories don't ________ the rules to protect the environment.
A. appreciate B. regard
C. honor D. respect
The visiting minister expressed his satisfaction with the talks, ______ that he had enjoyed his stay here.
A. having added B. to add
C. adding D. added
