[ Conditional Sentences ]
I did not understand what the lecturer was saying because I had not read hisbook.
A. What the lecturer wrote and said was too difficult for me tounderstand.
B. The lecturer’s book which I had not read was difficult tounderstand.
C. I found it very difficult to understand what the lecturer said in his book.
D. I would have understood what the lecturer was saying if I had read his book.

Random Topics:
Much, many, a lot of, a few, a littleAdjectives and comparisonsGrammar & TensesInfinitives for reasonsPast simple - Irregular VerbsPresent Simple Positive and NegativeTensePrefixes SuffixesRegular Plural NounsPast TensesOther quiz:
Grammar › ViewZack __________ Fortnite for five hours last night.
A. played
B. play
C. plays
Conjunctions › View
______ we arrived at the cinema, the movie had already started.
A. when
B. while
C. after
D. because
