Police are ________ the disappearance of two children.
A、lookingupC
A(在书中)查找B仔细查阅，审查，(对某人)视而不见C调查，研究，查问D.观看，旁观，看待
Towriteuphisnovel,Johnislookingforanenvironmentfree________outsidedistraction.
ModernEnglishvocabularydevelopsthroughthefollowingchannelsEXCEPT______.
Aliensareborrowedwordswhichhaveretainedtheiroriginalpronunciationandspelling.WhichofthefollowingwordscomesfromChinese?
Idiomsnominalinnaturehavea(n)______asthekeywordineachandfunctionasanouninsentences.
—Davidhasmadegreatprogressrecently.—_______，and_______.
