1. 判断下列单词是(T)否(F)同类

⑴A. noodles      B. sandwich        C. hot dog

⑵A. in                B. on                  C. under

⑶A. train           B. bus                 C. house

⑷A. making      B. drinking          C. sing

⑸A. Physics      B. Chemistry        C. Geography