It's already 5 o'clock now. Don't you think it's about time _____ ?

A) needn’t have done

B) must not have done

C) shouldn’t have done

D) can not have clone

A) regard

B) counting

C) account

D) observation

A. agent B. officer C. conductor D. inspector

A. not to hurt B. didn’t hurt C. would not D. had not hurt

A. his B. her C. its D. their

A. stereo, safety devices, air condition, and it saves gas

B. good music, safe devices, air conditioning,and gas

C. stereo, safety devices, air conditioned and good gas

D. stereo, safety devices, air conditioning, and low gas mileage

A. Thanks to B. According to C. Owing to D. For the sake of

A. am I B. isn’t I C. aren’t I D. am not I

A. do B. didn’t do C. don’t D. didn’t