. This math problem is ____ than the one we solved yesterday.
A. difficult
B. more difficult
C. most difficult
D. the most difficult
E. difficultest

Random Topics:
ComparisionGrammar and SyntaxPresent Perfect and Past SimpleComplex PrepositionsIf Conditional Zero and OnePresent Perfect Simple & Present Perfect ContinuousPreposition (at,in,on)Grammar - Verb FormsWill or Going toAdverbs of Frequency & Simple Present TenseOther quiz:
Grammar › ViewDaddy: What was Mommy doing when you _____ from school? Lisa: She _____ in the kitchen.
A. came; cooked
B. were coming; cooked
C. are coming; was cooking
D. came; was cooking
WH Questions and Simple Past Tense › View
Choose the question for this response: “She arrived last night.”
A. How did Jessica arrive?
B. Where did Jessica arrive?
C. When did Jessica arrive?
D. Why did Jessica arrive?
Grammar › ViewAds _____ say something misleading, that would be wrong.
A. can’t
B. should
C. ought to
D. must
Tenses › View
What took you so long? By the time you ______ I _______ all the work by myself!
A. came/ had done
B. had come/ did
C. came/ did
D. had come/ had done