[ Adverb Clauses ]
He couldn’t go to the concert __________ he had to work.
A. if
B. until
C. unless
D. as

Random Topics:
Grammar - to beGrammar on ConditionalsEnglish for TourismAdjectives (-ed / -ing)Grammar-Present Continuous-Sentence MakingPresent Simple & Present ContinuousParallelism and Subject Verb AgreementPresent/Past/Future Continuous TenseGerund, Infinitive & ModalsSimple Future - PassiveOther quiz:
Grammar › ViewChoose the sentence with the correct punctuation.
A. This laptop isn’t Peters. It’s Sharons’.
B. This laptop isn’t peter’s. It’s Sharon’s.
C. This laptop isn’t Peter’s. It’s Sharon’s.
D. This laptop isn’t Peter. It’s Sharons.
Past Modals › View
We ___ so many people to our party! I’m worried there won’t be enough room for everyone.
A. shouldn’t have invited
B. could have invited
C. would invite
Unreal Conditionals › ViewWhich is incorrect?
They might have understood if you explained it better.
A. might have understood
B. explained
Present Tenses › View
The new building _______ 100 floors and more than 500 units.
A. has
B. have
C. is having
D. has had
