. — I’d better ____ now. The water isboiling in the kitchen.— Good-bye.

__I feel tired and sleepy.__Why not stop ________

________ fails to realize the importance of improving the learning strategies will have great difficulty in learning.

d man came ___ to the railwaystation, only ___ the train was slowly pulling out of the station

Whose shirt is this—It ______ be Li Lei’s. It is too big for him.