We must decisions all the time? But we _____ never be certain whether we are right or wrong. The work you choose to do _____be suitable for you or it ____ not. The person you marry ____ be a perfect match _____be the worst possible choice.

Suppose you have saved money for the future. You ____ invest it wisely so that it grows in value or you ____ lose a lot in a foolish moment. You think you have a healthy diet, but the food you eat ____ be very bad for you and _____ be the cause of terrible illness. Perhaps you travel a lot by plane. All the flights you make are usual, but one of them ____be your last. Надо модальные глаголы ставить помогите пожалуйста