[ Grammar ]
I was surprised by __________ understand the difficult concepts.
A. be able to
B. being able to
C. to be able to
D. been able to
Select your answer:
Random Topics:
Simple and Compound SentencesAsking for and Giving OpinionMain Idea and Sentence StructurePresent Perfect or Past Simple TenseWill vs Verb InfinitivesAdjectivesVerbs and Subject Verb AgreementContractions and ConjunctionsConnectives (because, due to, owing to, because of)Other quiz:
Grammar › ViewMark’s wife would be happier if he […] more time at home and less time at work.
A. is spending
B. spent
C. spends
D. has spent
Articles › View
Laura has ___ dog and some cats. ___ dog is really cute.
A. The / A
B. A / The
C. A / A
D. No Article / The