This street is very crowded at this time of day.You have to be very cautious while ______.
A．to drive B．being driven C．driving D．having driven
--- When shall I pay the bill?
---Don’t mind it, sir.__________.
A. Please come at your convenience B. Till you are convenient
C. You’ve got to pay it right away D. I don’t mind it either.
The reason why Malaysia Airline Flight370 disappeared remained_____.
A. look intoB. to be looked intoC. looking into D.to look into
Some of my workmates prefer to send to our QQ group ______ news they got.
A. whatever B. however C. whichever D. whenever
------I’d like to buy some special clothes online, but I can’t find an online shop.
------I know_____. Let me show you.
A. it B.that C. one D. them
—What do you think of the girl?
—Not only ________ well but also ________ modest.
A．she works；she isB．does she work；she is
C．does she work；is she D．she works；is she
