—Always look around________you cross the street,David.—OK.I know,Mum.A.untilB.beforeC.unless
–Mr Brown asked me to remind you of the meeting this afternoon. Don’t forget it !--OK, I __________.
Jim didn’t get enough ________. He felt so ________ that he fell ________ soon.
Though the work is very hard, he doesn’t want to_______easily.
It’s kind _______ you to help me with my Math. Now I think it's easy _______ me to learn Math well.
–What did the doctor say to you?-He asked me _______.