Правила использования could/couldn't кратко

As well as managing the political centre, the city is also the centre for business, education and culture. Looking forward to participation from you soon. The style of my writing is going to be informal. She’d like to earn her living by hearing(?) a hotel or a restaurant. He suggested walking to the city centre after lunch. They couldn’t leave the place without taking some photos. Don’t stop! Keep on trying. They saw stairs leading to the top of the tower. You should always read the rules before playing a game. Does he enjoy spending the time with his nephew and niece? Mrs Diggle suggested going to the museum next Tuesday. My friend doesn’t stand being in such activities.

As well as managing the political centre, the city is also the centre for business, education and culture. Looking forward to participation from you soon. The style of my writing is going to be informal. She’d like to earn her living by hearing(?) a hotel or a restaurant. He suggested walking to the city centre after lunch. They couldn’t leave the place without taking some photos. Don’t stop! Keep on trying. They saw stairs leading to the top of the tower. You should always read the rules before playing a game. Does he enjoy spending the time with his nephew and niece? Mrs Diggle suggested going to the museum next Tuesday. My friend doesn’t stand being in such activities.