[ Modal Verbs for Speculation ]
I’m not sure but it looks like snow falling outside. It_________________snow falling outside.
A. Must be
B. Could be
C. has to be

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Gerund & InfinitiveModal and Phrasal VerbsGerunds and TensesGrammar Like & Linking VerbPresent Perfect, Present Simple, Present ContinuousVerb Moods and Vague PronounsReflexive pronounsIntermediateGrammar - Present Perfect with for and sinceFuture Tense and ConditionalsOther quiz:
Grammar › ViewDependent or independent Clause
” I love reading books”
A. Clause
B. Dependent Clause
C. Independent Clause
D. Phrase
Can vs be able to › View
When Mike was a kid, he __________play the piano. Now, he gives concerts.
A. was able to
B. wasn’t able to
C. could