—How do you usually go to school?
—My school is far away.I ________ take the bus to school.
句意：—你通常怎样上学？—我的学校远。我必须坐公交车上学。A. must必须，强调主观上的愿望；B. might可以，可能；C. have to必须，强调客观上的要求。由于家离学校远的客观原因，我不得不坐公交上学。用have to。故选C。
—How do you usually go to school?
—My school is far away.I ________ take the bus to school.
—You ________ takephotos here! Look at the sign. It says “No photos”.
—Sorry, I won’t.
My bike was broken yesterday，so I____walk home．
You________take me to the station. My brother’s taking me.
—According to the schoolrules, the students ________ get their ears pierced.
—I think that’s right.
—In China, many studentsfeel stressed because of too much homework.
—Don’t worry. Our government has realized this problem. I’m sure there________ be good news for them soon.
This book ________ be Jim’s.His name is on it.
—Look! There are so many people in the restaurant.
—Yes. The food there ________ be delicious.
—____________ we leave the library before 5 o'clock?
—No, you needn't. You can stay here until 5:30.
The biggest challenge weall face is to prevent further environmental disasters. We ________ take action before it is too late.
