[ Relative Clauses ]
He went to Boston last weekend. He took part in a conference there.
A. He went to Boston last weekend where he took part in a conference.
B. He went to Boston last weekend at which place he took part in a conference.

Random Topics:
Because / soVOCAB & GRAMMARConjunction: Because and SoVerb PhraseTenses & PrepositionComparative AdjectivePhrases and TensesPast form of ModalsNouns FormationGrammar - too & enoughOther quiz:
Grammar › ViewChoose the correct form: the college of Charlie and the college of Louise
A. Charlie’s and Louise’s colleges
B. Charlie and Louise’s colleges
C. Charlie and Louise’s college
D. Charlie’s and Louise’s college
Prepositions of Time › View
I usually take a walk __ the morning before I go to work.
A. in
B. on
C. at
D. of
Grammar › ViewYou are allowed to leave………….. you have finished your work.
A. on
B. in
C. after
D. before
Active vs. Passive Voice › View
You can’t smoke cigarettes here.
A. This sentence is “Active.”
B. This sentence is “Passive.”
