tknowhow的精选

问题详情：Ifyoudon’tknowhow______newwords,_____ inthedictionary.       A.tospell;lookitup     B.spelling;lookthemup       C.tospell;lookthemup   D.spelling;lookitup【回答】C知识...

问题详情：Idon’tknowhow______commas.  A:use       B:touse      C:used【回答】B知识点：非谓语动词题型：选择题...