That hero who died in the war was so brave that he never ____ ____ to the enemies until death.
—May I speak to the patient now?—No, you _____. He is too weak now.
—Why am I so slow at doing the cloze test?—I guess you didn’t realize the use _____ the contexts.
My MP4 player isn’t in my bag. Where I have put it?
The biggest problem for most plants, which ______ just get up and run away when threatened, is that animals like to eat them.
— Is John coming by train?— He should, but he ______ not. He likes driving his car.