They __________ their teeth twice a day to keep them healthy." . . . . Options: a) brush, b) ignore, c) damage

He could get the perfect score. Could it be used when he didn't get the perfect score? ------------------------------------- If he was't late, he could get the perfect score. (In fact, he didn't get the perfect score.) Is this sentence correct? --------------------------------------------- Thanks in advance!!!

It's rainy heavily today. My new semester has started, and I have a new schedule. Every day after school, I'll hit the gym for at least an hour of exercise. I'm starting today! They have several high-quality treadmills that can be adjusted for a more challenging workout. The tracks on them can tilt up a bit to create a upslope situation, interesting! But anyway, I still prefer jogging in the park. Given the recent weather here, I'll probably spend more time at the gym.

I dreamt a chemistry teacher who taught in our school for a short period of time. She treats everyone well. If I didn’t see it, I wouldn’t believe there’s such a big difference between people. For example, she shared her snacks with the cleaner who was on night shift. She even invited me to her place. In winter, her cooking brought warmth to me — a person wanders from place to place. After her quit, many people asked me and shared memories about her. On her last day of working for the school, she said she wanted to go to the hospital with me. I knew that because she wanted to shared the cab with me. She even waited for me and called me in the hospital. I said, “I won’t go with you. I’m going back to Tianjin.” She said farewells, then turned and went. I couldn’t stop my tears and dared not to watch her retreating figure.