[ Grammar ]
You would save energy if you …… the lights more often.
A. will switch off
B. would switch off
C. switched off
D. switch off

Random Topics:
Superlative AdjectivesAdjectives or AdverbsHelping and Linking VerbsPast Tense and Perfect TenseBasic GrammarPast ContinuousGrammar TOEFLVerbs of movementPresent Perfect and Simple Past TensePast Continuous Tense & Past ModalsOther quiz:
Grammar › ViewAfter Nela___________ for twenty minutes, she began to feel tired.
A. jogging
B. had been jogging
C. has been jogging
D. has jogged
Grammar › View
Deanna is the _______ of the three sisters.
A. most short
B. shorter
C. shortest
D. more short