[ -Ing and Infinitive Verb Patterns ]
I usually forget _____ the lights off.
A. turning
B. to turn

Random Topics:
Passive SentencesWho vs WhomVerbs - third personPresent Perfect or Past SimplePreposition and ConjunctionCommon & Proper NounsFunctional Sentence TypesModal Verb, Passive VoiceFirst Conditional, Future Time ClausesConditional TensesOther quiz:
Passive Modals › ViewHe is wearing a gold ring on his fourth finger. He —- (marry).
A. must have been married
B. must marry
C. must married
D. must be married
Vocabulary › View
________ your food when you eat. Do not swallow it.
A. Chew
B. Bite
C. Grind
D. Tear
They have a big collection of paintings ___ Picasso.
a. at
b. by
c. with
Present Tenses › View
The birds are flying in the air.
A. Present Perfect
B. Present Perfect Continuous
C. Present Continuous
D. Present Simple