If payment is not received, legal action will be our only ________.
A、aggressionC
A挑釁、侵犯B優勢、優點C選擇、取舍D野心、抱負
Youngerchildrenarecurious________howthingswork，andmanyofthemwanttotakeaparteverythingwithintheirreach.
Thereisadeadlock(僵局)inthediscussionwhenneithersidegives________totheother.
Johnsonwas________unknownbeforerunningforthepresidency.
Thebasicunitinthestudyofmorphologyis______.
_______isafactthatEnglishisbeingacceptedasaninternationallanguage.
