根据短文大意，用括号内所给词的正确形式填空。

Dear Mom,

    I'm OK at school. My teachers said it was very 1_______ (help) to have conversations with foreigners,

but I'm too 2_______ (shy ) to talk to the American students. Unlike (与……不同) the classroom in China,

the classroom here are 3_______ (noise) and sometimes I can't hear the teacher clearly. Because my English

is poor, I am busy 4_______ (catch) up and I 5_______ (hard) have time to listen to music. I usually stay

up 6_______ (late) at night and am often 7________ (sleep) in class.

    My teacher Miss Green doesn't agree with my way of 8_______ (study). I think she is right.I need to

be 9_______ (real). Rome wasn't built in a day. I know the 10_______ (important) of working hard, but I

also need some time to relax.

    Don't worry about me. I will be OK.

                                                                                                                                                 Mei.

关于iMC BIMS的说法正确的有（）。

A.依赖于iMC平台

B.不依赖于iMC平台

C.即TR069协议中的ACS服务器

D.定位于零售连锁，物流，运营商等客户群