Professor Tate __________ about him.
A、heardthestudentstotalk
B、heardthetalkbythestudents
C、heardthestudentstalking
D、heardthestudentstotalking
必要的;基本的 adj.要素，要点 n. e_______________
Theresearchprojecthasonlybeenunderwayforthreemonths,soit’toosearlyto_______itssuccess.
A、figure
B、consider
C、rate
D、evaluate
The time has come for the company to __________ after years of rapid
expansion.
A、consist
B、consider
C、consolidate
D、combine
All of my efforts to__________ peace failed.
A、reserve
B、conserve
C、persist
D、preserve