David often helps Sandy ___ her Maths, he shares his school things___ her.
An old man wants to buy a hat.He should go to a ________.
—Thank you very much. —________.
—Excuse me,where is the nearest(最近的) hospital? —Go ________ the road,and then turn left ________ the first turning.
The old man is a good swimmer,and even now he often swims ________ Tuojiang River after supper.
Just go straight and turn ________.The hotel is ________.