—What courses are you going to do next term?—I don’t know. But it’s about time ________ on something. 

She got stuck in a traffic jam on the way, or she    dinner with us now．

 Wang Ling, one of my friends, is very good at English. He speaks English as if he ________ an Englishman. 

—Where have you been?—I was stuck in the heavy traffic. Otherwise I ____here earlier.

I_______  such a foolish mistake if I had been a little more careful.