I really don’t know ___ ___I kept the secret papers.

Students _________ to use theirdictionaries when they _________ an English test.

How did you like Nike’s performance last night—To be honest, his singing didn’t ________ to me much.

I’m tired outI__________all afternoon and I don’t seem to have finished anything

Do you know what your problem is?—Yes. I always overwork to ________ for lost time.