[ Conjunction ]
_____ he knew the answer, he would not tell us.
A. until
B. since
C. although

Random Topics:
Participle - ing/ edPast Perfect SimplePronoun Antecedent AgreementGerunds as objects of prepositionDirect-Indirect SpeechIdentifying Sentence TypesModals of ProbabilityGerund - to Infinitive Present Simple PassivePhrasal Verb With TakeOther quiz:
Modal Verb › ViewIf you’ve got such a bad cough, you ___________________ smoke.
A. Has to
B. Should
C. Need
D. Shouldn’t
Perfect Tense › View
Hannan … his front gate by the end of the day.
A. will paint
B. will painted
C. will have painted
D. will have pain
IELTS Grammar › ViewHealthcare needs _________by the government
A. invest
B. invested
C. investing
D. be invest
Relative Clause › View
I have to learn new words. They are very difficult.
A. I have to learn new words that are very difficult.
B. I have to learn new words that they are very difficult.
C. I have to learn new words who are very difficult.
D. I have to learn new words whom are very difficult.
