[ Subject Verb Agreement ]
The flock of birds ___ flying south for the winter.
A. is
B. are
C. were
D. have been

Random Topics:
Object PronounsPresent Simple and ContinuousQuantifiers & Modal VerbsWho am I?HomophonesDefinite ArticlesHomophone & HomonymPassive Voice - Present TensesSimple Present and Past TensesPast Perfect Simple TenseOther quiz:
Tenses › ViewAt this time next week, I (study) at the university.
A. will study
B. have studied
C. will be studying
D. am studying
Grammar › View
I went to _______ house last night; ________ are a really nice family. You should go over ______ sometime.
A. there, they’re, their
B. their, they’re, there
C. they’re, there, there
D. their, there, they’re
Today is Monday,…………..?
A. Isn’t he
B. Isn’t it
C. Is it
D. Are they
Vocabulary › View
My _____________ are very comfortable.
A. brogues
B. bourgeois
C. avant garde
