It is not the place that I can study .study后面要不要in?

It is not the place that I can study .study后面要不要in? The classroom is so dirty that we can't study in it.（保持原意） Is that ()he used to study?为什么填where,而不是填in which,the place, the school is computer lab is so noisy that he can not study 英语翻译1.It is not just in academic study that children are bei The nurses' study suggests that it can work in the other dir I find __ not essy to study math well. A.that B.it C.is D./ Although Math is difficult,I study hard要不要加it I feel happy that I can study with you in the future .什么意思 Now I study math really hard so that I can be m__ in the fut You can study the.Where is it?It's the 定语从句‘It's the room that you can study in.’有没有错误?