В следующем году хочу сдавать огэ по английскому, но мне очень сложно произносить союз "that", в значении "что". объясните, когда его обязательно нужно употреблять, а когда можно опустит, и значение предложения останется тем же

rabbit, ann, a duck, he, she

1)my close friend lives in moscow now

2) as a rule, he spends his holiday at the seaside.

3) i am very busy on sunday.

4) she is always very glad to see me.

5) there is nothing to think about.

this summer i was in the camp. i was there for 3 weeks. there were many interesting things in the camp. every morning we did exercises. then we had our breakfast. after it we cleaned our rooms and territory of our camp. then we went to the sea. when we returned to the camp we had dinner. after it we slept for 2 hours. then we went to different   sections. in the evening we had supper and went to the disco. at 10 o'clock we went to sleep.

i'm trying to find ways to keep myself from being bored.

1)are you  trying to find ways to keep yourself from being bored? общий

2)who is  trying to find ways to keep yourself from being bored? специальный

3)are you  trying to find ways to keep yourself from being bored or fall into it? альтернативн.

4)you are  trying to find ways to keep yourself from being bored, aren't you? разделительный