[ Relative Clauses ]
Do you know the reason _______we should learn English?
A. who
B. when
C. where
D. why

Random Topics:
Simple TensesDirect Object and Indirect ObjectSynonymsTOEICModal Auxiliaries and To Be VerbsPassive Voice, Question Tag, PrepositionsModals "Should"Present Perfect and Present Perfect ContinuousModals with Perfect InfinitivePast Tense & Past Continuous TenseOther quiz:
Verb Phrases › ViewWhat is the verb phrase in this sentence?
Harry, Ron, and Hermione are sorted into Gryffindor.
A. Gryffindor
B. Harry, Ron, and Hermione
C. into Gryffindor
D. are sorted
Homonyms › View
For heaven’s sake ___ be glad to have you stay with us.
a. weed
b. we’d
I would have visited you before if there _____ quite a lot of people in your house.
A. hadn’t
B. hadn’t been
C. wouldn’t be
D. wasn’t
State Verbs and Action Verbs › View
This dress _________a lot! I don’t need it!
A. costs
B. cost
C. is costing
D. costing
