[ Grammar ]
There is the most difficult problem ___ we must discuss.
A. which
B. whom
C. that
D. whose

Random Topics:
Past and Present Continuous tenseConditional Sentences Type 0, 1 and 2Inversions and SubjunctivePreposition and Preposition PhraseVerb TensesPreposition of TimeConditional TensesDirect-Indirect SpeechReported - GerundInfinitive GerundOther quiz:
Noun, Adjective, and Adverb Clauses › ViewHow is the clause being used in the sentence?
The girl’s worst flaw is that she is wearing too much makeup.
A. subject
B. direct object
C. subject complement
D. object of preposition
Vocabulary and Grammar › View
The terrible thing was that he accused me of _________ lies.
A. saying
B. telling
C. speaking
Modal Verbs › ViewWhat is the correct modal verb to complete this sentence: Employees ___________ attend the training session next week.
A. must
B. should
C. can
D. will
Vocabulary › View
A caterpillar ends its life ________ as a butterfly.
A. ordeal
B. cycle
C. hardship
D. challenge
