Modal Verbs

Which modal verb can replace "can" in the sentence: " He can come to the party"?

We ....go to the resort if the weather is nice.

You ... perform your job better.

What ... you do in this situation?

You ... hurry to catch the train.

She ... contribute to this project.

He has been thinking about it since last week but he.... decide.

We are a bit worried that we ... not enjoy living there.

... you write to me and tell me what you think?

She ... remember to go to the bank, she hasn't got any money.

A: I've finished doing my homework, I'm ready to leave.

B: You ....be ready so soon! You only started ten minutes ago!