He got well-prepared for the job interview, for he couldn’t risk _____ the good opportunity.
A. losing B. to lose C. to be lost D. being lost
—— She will finish the project within three days!
—— ______! I could do it in three hours.
A. You are right B. I’m stuck C. Oh, come on D. Don’t mention it
Anyone ________ bags, boxes, or whatever, was stopped by the police．
A．seen carry B．seen carrying C．saw to carry D．saw carrying
The great millionaire gave away all his fortune to the charity and lived a simple life，________.
A．happy and content B．happily and content C．happily and peaceful D．happy and peace
While dancing happily at home,_______________ ．
A．the door bell rang B．the door bell rings
C．we heard the door bell rings D . we heard the door bell ring
Some people argue using ____________ nature to meet our own needs may spell disaster, unless we start to look around and understand how _________ clean environment benefits us all.
A. /; a B . the; the C. the; a D. a; a
