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

Random Topics:
Yes-No Question Lend vs. Borrow Causative Verb Similes and Body IdiomsSynonymsComparisionModalGrammar - Present and Past PassivePast Simple and Past Continuous
Other quiz:
Grammar › ViewThe lesson ___ interesting.
A. looks
B. look
Prepositions › View
But …………. the end we became good friends
A. On
B. In
C. At
D. By
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