MODALS (could, should, must); have to

Read the sentence and choose (suggestion, advice, obligation):

"Your phone is very expensive! You have to use it less often."

Read the sentence and choose (suggestion, advice, obligation):

"You should walk to work. You need to exercise."

Read the sentence and choose (suggestion, advice, obligation):

"You could try talking to your sister about the problem."

Read the sentence and choose (suggestion, advice, obligation):

"You must be in class at 8 a.m."

Read the sentence and choose (suggestion, advice, obligation):

"You ought to leave now or you'll be late."

You (a)   (very strong) use sunscreen at the beach.

You (a)   (gentle) go to bed early to get eight hours sleep.

My brother (a)   (strong) drink less coffee.

You (a)   (gentle) eat salad for lunch.

You (a)   (strong) drink lots of water after cycling.