I (know) his mother since I (be) 5 years old because she was my neighbor.
A. have known – be
B. have known – was
C. knew – was
D. knew – were

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Past TensesFuture - will / going to / present continuousGrammar and IdiomsPossesive Pronouns and Modals of AbilityCan, Could, May, MightComparison & Modal Verbs in Passive VoiceMixed GrammarVerbs and Possessive AdjectiveModals, Phrasal Verbs, Gerunds and InfinitivesPrepositions of Time & PlaceOther quiz:
Grammar › ViewThe computer _________ slowly since we installed the new operating system.
A. was running
B. has been running
C. will run
Tenses › View
I helped my neighbor yesterday.
A. Present Simple
B. Past Simple
C. Future Simple
Grammar and Vocabulary › ViewYou don’t have much to encode: there are not many customers.
A. You don’t have much to encode: there are not much customers.
B. You don’t have much to encode: there are not few customers.
Modal Verbs › View
Find a similar sentence:
My parents made it obligatory for me to stay home on weekdays.
A. I can’t stay home on weekdays.
B. I should stay home on weekdays.
C. I have to stay home on weekdays.
D. I’m able to stay home on weekdays.