[ Grammar ]
I ______ what the problem is by tomorrow.
A) will be discovering
B) have discovered
C) will have discovered
D) will be discovered

Random Topics:
IN, ON & ATPast Perfect vs Past SimpleTenses and ArticleCompound Words and SentencesMain Idea and Sentence StructureSimple Compound and Complex SentencesConjunctions and TransitionsConjunctive AdverbsPast simple vs Present perfectPassive Voice in Past and Present TenseOther quiz:
Grammar & Vocabulary › ViewI have known Chris _______ we started school together.
A. since
B. for
Vocabulary › View
relating to the country or country life
A. duration
B. rural
C. exclude
D. analyze
