[ Grammar & Vocabulary ]
My father was raking leaves __________ he saw a big snake slithering behind the tree.
A. who
B. when
C. which
D. while

Random Topics:
Passive to ActiveSo / Neither / Either / TooGrammar - Wh QuestionsGrammar and IdiomsSimple Past TenseToeic Verb1st ConditionalNoun / Pronoun-ed/-ing AdjectivesMust Vs Have toOther quiz:
Grammar › ViewGreenleaf Press will soon publish a ___ pocket version of Manuel Santiago’s book An Insider’s Guide to travel in Argentina.
A. gathered
B. replaced
C. condensed
D. acquainted
Modal Verbs › View
You (walk) the dog on a leash.
A. have to
B. should
C. must
D. mustn’t
Conditional Sentence › ViewIf you (to wear) ____ sandals in the mountains, you (to slip) ____ on the rocks
A. wears, will slip
B. wear, slip
C. wear, will slip
D. will wear, will slip
Grammar › View
Class started _____ 8 am.
A. to
B. at
C. in
D. on
