Younger adults who get either little sleep or a lot of it ________ see a greater expansion in their waistlines over time. A. may B. must D. need D. shall
She is very strict not only ________all of us,but ________all her own work.
There aren't many seats left for the play;you had better make sure that you ________two today.
My father was so tired that he soon fell asleep ________the candle still________.
One's life has value ________one brings value to the life of others.
—What is he like? —He is patient ________others and ________hardships.