Fill the correct model. auxiliary verbs.

need to, must not, may, should, may have, should have, must could, had better

1. you cheat in exam (probability)
2. you plant trees (advice)
3. it rain in the afternoon (possibility)
4. you do this to pass the subject (necessary)
5. mia run fast when she was young (ability)
6. you always do your home work (obligation)
7. last year i failed in exam, what should i done? you studied hard (criticism/regret)
8. the tanker is empty you stop drive (strong advice)
9. go to toilet
10. they gone cinima (possiblity)

Ron and nick chose to start their own businesses. ron wanted to start an ice cream shop, and nick wanted to launch a television manufacturing company. ron and nick had equal amounts of funds on hand and no government regulations restricting them. months later, however, ron has already set up his business, while nick is still struggling to raise additional funds to build a factory. what was the main factor that affected nick’s business? a. an irrelevant business idea b. low demand for tvs in his country c. high start-up costs d. lack of labor economics