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
Idioms nominal in nature have a(n) ______ as the key word in each and function as a noun in sentences.
ThefollowingwordsofthebasicwordstockdenotethemostcommonthingsandphenomenaoftheworldaroundusEXCEPT______.
“Apple,pear,peach,orange,lemon,etc.”makeupthe______of“fruit”.
—Davidhasmadegreatprogressrecently.—_______，and_______.
Which of the following statements is TRUE?
