If the economy doesn't improve, lots of business down. 1) will close
2) would close
3) closing

If the economy doesn't improve, lots of business 1) will close down.

Объяснение:

Надеюсь вам

his / her birthday is in october.

he / she likes her birthday.

he / she invited guests to her birthday party - он/онапригласилгостейнаденьрождение

the guests will come in the evening. they’ll give him / her cards and presents.

1. i must brush my teeth. - anyone, most likely some disobedient child.

2. i have to brush my teeth. - a patient of dentist's, a human with diseased tooth.

3. i must tidy my room. - anyone, most likely some disobedient child.

4.i have to tidy my room. - anyone, probably a child.

5. i must take the medicine. - someone with easy form of illness.

6. i have to take the medicine. - most likely, a regular patient