If we had known about the problem, we … active earlier.
A. would have becomed
B. would have became
C. would had become
D. would have become

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Have as verb and auxiliaryObject PronounGrammar - Place and MovementGrammar for IELTSGrammar - could / could notHave vs. HasGerund or InfinitiveReported Speech and TensesGrammar - to be, possessive, have gotPast Tense & Past Continuous TenseOther quiz:
Mixed General Quiz › ViewModern buildings had a heat and smoke ___ in every room.
a. censor
b. censure
c. sensor
Adverb of Frequency › View
his / night / neighbour / out / put / Sunday / My / to / rubbish / never / on / remember
A. My neighbour remembers never to put his rubbish out on Sunday night.
B. My never neighbour remembers to put his rubbish out on Sunday night.
C. my neighbour never remembers to put his rubbish out on Sunday night.
D. My neighbour never remembers to put his rubbish out on Sunday night.
Grammar › ViewWhat did you do two hours aho ?
A. I watched TV
B. I Will study English
C. I have breakfast
Kinds of Nouns › View
lotion
A. Common
B. Proper
C. Mass
D. Count
E. Collective
