[ Adverb Clauses ]
__________ he studies, he won’t improve his grades.
A. If
B. After
C. Unless
D. Because

Random Topics:
Grammar and VocabularyAdverb of TimeParticipal PhrasesTo Infinitive/Bare Infinitive/GerundsSubordinate ConjunctionsPhrasal Verb Put & GoGrammar - Imperatives and LetReported Speech and SubjunctiveVerbs and AdverbsRelative Clauses and etcOther quiz:
Grammar › View……………………my wife and I teachers?
A. Am
B. Is
C. Are
D. Be
Vocabulary › View
I worked so hard to build this company but in ____________.
A. vain
B. aggrandize