[ Grammar ]
He was making a sandwich in the kitchen………he saw a big gecko.
A. when
B. while

Random Topics:
Subject-Verb AgreementPassive VoicesPresent Progressive TenseTypes of SentencesVerb, Object, PrepositionAdjectivesTOEFLProgressive Verb TensesFirst & Second ConditionalAdjectives and comparisonsOther quiz:
Conditional Type 1 › ViewErika…(can/move/not) into the new house if it isn’t ready on time.
A. Can move
B. Can’t move
C. Not can move
D. Can’t moves
Comparative Adjectives and Adverbs › View
My (old) brother is working in London.
A. elder
B. older
C. eldest
D. oldest
Past Progressive Tense › ViewThe dog………………. barking.
A. were
B. was
Vocabulary › View
What is the meaning of “Perilous”?
A. Safe
B. Dangerous
C. Calm
D. Secure
