[ Grammar ]
I _____ about the problem months ago, but I _____ a solution yet.
A. know/haven’t
B. had known/didn’t find
C. knew/haven’t found

Random Topics:
Grammar - Countable/ UncountableCommon & Proper NounsPast SimpleVocabulary, Adjective & PrepositionSingular and Plural NounsLinking WordsFuture Perfect ContinuousVerbs with Prepositions and ConjunctionsSimple Tenses in EnglishGrammar-Verbs & Nouns Singular, Plural, GenderOther quiz:
Grammar › ViewCristiano Ronaldo
A. have represented Portugal
B. has Portugal represented
C. has represented Portugal
D. hasn´t represented Portugal
Grammar › View
We ______________ meeting yesterday.
A. is having
B. are having
C. was having
D. were having
Reporting Verbs › View“You’re not allowed to use the computer anymore.”
A. We forbade our kids to use the computer.
B. We forbade our kids from using the computer.
C. We forbade using the computer to our kids.
Simple Past Tense › View
My teacher … me about this topic last year
A. teach
B. teaches
C. teached
D. taught
