[ Linking Verb ]
Street lights can ……… when the streets are empty and sensors can inform waste collection teams when the bins are full.
A. turn on
B. turn down
C. turn up
D. turn off

Random Topics:
Comparatives and Past Perfect TenseComplex PrepositionsModal SpeculationPresent Perfect Continuous TenseQuantifiers: too many, too much & enoughIn/On/At + TimeGrammar and Verb TensesThe First Conditional SentenceModals and TensesAdverb & Compound SentencesOther quiz:
Prepositions › ViewGrandpa stayed up ______ two in the morning.
A. Since
B. For
C. Until
Modal Verb › View
May I have two tickets, please? …………. two tickets, please?
A. You must give me
B. You have got to give me
C. Could I have
D. You may give me
Grammar › ViewThe doctor has been advising him to _______ smoking for a while.
A. lay off
B. lay out
C. lay on
D. lay up
Grammar Suffixes › View
Which word means completes the sentence?
The play was so boring! It seemed ____________.
A. endful
B. endless
