Some students are so ______ that they often make mistakes in their homework.
—How about climbing the hill? —I would ratheralong the river thanthe hill. I'm a bit tired.
--- How cool the iPhone5s is ! ---In our shop it_____ very well now. Get one before it________out.
I do not doubt ________ win in the race.
--- Do you know much about the city? --- Yes, I ___________ there three times.
Why not ______ your teacher for advice when you don’t know ______ the problems?