make discovery 是一个短语.其中的have 只能做时态来看 应该是A吧
having done
Professor Smith is said ______ another important discovery i
3个回答
相关问题
-
the professor is said___another important discovery为什么是to ha
-
纠错:That the professor said is of great importance
-
He made another wonderful discovery ,___of great importance
-
He has made another wonderful discovery, _____ I think is of
-
I wish to thank Professor Smith, without ______ help I would
-
I wish to thank Professor Smith，without ________ help I woul
-
Plastic is one of the most important technological discoveri
-
I’m very grateful to Professor Smith, without __________ hel
-
I wish to than k Professor Smith, without _______help I woul
-
Professor Johnson is said ------some significant advance in