---Must I turn off the gas after cooking ?

---Of course . You can never be ___ careful with that.

A．enough　　　　 B．too　　　　　 C．so　　　　　　 D．very

I refuse to accept the blame for something ________was someone else’s fault.

A.who　 B.that C.as　 D.what

 The children loved their day trip, and they enjoyed the horse ride ______.
A. most       B. more     C. less         D. little

Reading _______ one’s mind. You should do more reading instead of playing computer games when you are free. .

A.expands　　 B.arises　　　 　C. rises 　　　 D. enlarges

Tom Hopper got his work _____ in the filming industry for his film had been crowned best picture at the Oscars.

A. to recognize　　 B. recognizing　 C. recognize　　 D. recognized　

________ more attention and caring, the child wouldn’t have become so selfish and naughty.

—Will you join us in the game?

—Thank you, _________ I’m busy preparing for my examinations.

A. but why not? B. but I’d rather not.　 C. and I won’t. 　D. and I’ll join.

It’s so f　　　 outside that everything is covered with ice.