After ten years abroad, he still recognized his old colleagues ________ he set foot in China.
I was about to walk over to Tom’ s seat when he ________ and left.
Please do not feed the fish; they ________ die if they eat too much.
The 16th Asian Games started ________ November 12 th, 2010 in Guangzhou.
David wants to be ________ engineer while Cathy wants to be ________ doctor.
----Oh, no. It’s 5:45 now. I have to go and pick up my daughter.---- _____. See you tomorrow.