It is estimated that this investment can $500000 a year.[ ]

Jane always tries to ____.—That’s true. She always compares herself with her friends and neighbours.

the matter with you—Afterthe long walk, my legs ______ and I couldn’tgo any further.

What do you usually do at the weekend—I the TV program “Who’s Still Standing (一站到底)” with my family.

You mustn’t go off on your own, because you______get lost in the mountains.