"I'm gong to work hard __ it(指chinese）"

I'm going to work hard-----it I'm finding it hard to concentrate on my work! I'm sure it's gong to _____( rainy ) It' s hard work and we need to work very quickly,but I'm not I’m going to work hard _____it . I find it hard （to learn） Chinese well 为什么是to lea I am w_____ in Chinese.I must work hard at it. I am going to work hard ____ it. 英语句型转换1.it's very hard to work out the math problems (同义句）__ learning Chinese is hard work ,it is a good idea to start no I found it hard to concentrate on my work （ ）so many people In order to go to collede ,you __ __ __ __ __ __ work hard.