To “fall behind” means to ___.
a. not keep up
b. hurt yourself
c. get angry
Have Been to vs. Have Gone toPast Continuous TenseIndefinite Pronoun Past Simple and Past ContinuousSubject-Verb AgreementCommunicative GrammarLinking Words & PhrasesArticles & Compound NounsPresent Tense (Negatives and Questions)
Other quiz: Conditional Sentences
If I … her name, I would tell you her name.
C. have known
D. had known
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