Ifpaymentisnotreceived,legalactionwillbeouronly________.
C
A 挑衅、侵犯 B 优势、优点 C 选择、取舍 D 野心、抱负
______ of a sentence depends on the context in which the sentence is uttered.
Thisisanimportantproblem_______toofewsocialscientistshaveresearched.
Thebasicunitinthestudyofmorphologyis______.
Iaskedhimto________meafewminutessothatwecouldgooveralltheproblems.