what's that in English lts a bag( ) what's this?This is"C"(

what's that in English lt's a bag ( its -> It's )
what's this?It is"C".( This -> It )
加油!不明白再问!
再问： what's your telephone number? your number is 023--5439______________________ my name is jane morgan name_______________ it's computer game ____________
再答： what's your telephone number? My number is 023--5439( your -> My) My name is J ane Morgan . it's a computer game