[ Grammar ]
My students were not able to understand _____.
A. the book which gave them
B. the book that I gave them
C. which I gave them
D. the book whom I gave them

Random Topics:
Demonstrative Pronouns and Verb Tensestake, make, doAdverbs by TypeImperative SentencesSubject-Verb AgreementBe used to vs used toTime ClausePerfect and Past TensesContinuous and Perfect Tenses“Put” Phrasal VerbOther quiz:
Modals › ViewI ………………… go to school on Monday. It was a holiday.
A. don’t have to
B. didn’t have to
Adjectives Ed and Ing › View
I can’t believe I did that. How _________!
A. embarrass
B. embarrassing
C. embarrassed
The hot air balloon at the field  ______ a lot of attention in yesterday’s game.
A. drew
B. draws
C. drawing
D. drawn
Prepositions › View
Iraq is rich ________ oil.
A. on
B. at
C. to
D. in
