[ Subordinating Conjunction ]
She smiled ___ she was feeling sad inside.
A. because
B. if
C. although
D. when

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Prepositions of Time & PlaceModals of ProbabilityAsking & Giving AttentionSimple Present Tense vs Present Continuous TenseFuture Time and TensesPerfect and Past TensesLexico and GrammarComparative Adjectivea, an, the, zero articlePerfect Verb TensesOther quiz:
Prepositions › ViewVery few people succeed ____________ finishing this course in three months.
A. in
B. for
C. from
D. with
Present Perfect Continuous Tense › View
My brother __________ on the phone for two hours.
A. has been talking
B. has been talked
C. have been talking
D. have been talked
Grammar › ViewAfter a big _____ with my sister, we are not talking.
A. fight
B. argue
C. encourage
D. likely
Grammar › View
Lisa always __________to school.
A. walk
B. walks
C. run
D. drives
