[ Grammar ]
The dog ……….. barking at the stranger.
A. is
B. are
C. the

Random Topics:
Prepositions & Modal VerbsAdjective + to + VerbSimple Compound and Complex SentencesConnectorsZero ConditionalNoun ClausePresent Simple & ContinuesFigurative LanguageGrammar-Verbs & Nouns Singular, Plural, GenderPast Perfect and Past Perfect ContinuousOther quiz:
Gerund and Infinitives › ViewAlex ______ to be promoted.
A. expect
B. expects
Grammar › View
Choose the gerund phrase in the sentence. Giggling, the toddler would not stop jumping off the couch.
A. Giggling
B. jumping
C. would not stop
D. jumping off the couch
Tenses and Comparisons › ViewHey Rina, can you help Joko figure out the comparative form of the adjective ‘happy’? Let’s see if you can find the right answer!
A. happier
B. happiest
C. happyest
D. more happy
Grammar for TOEFL › View
Rarely _____ located near city lights or at lower elevations.
A. observatories are
B. are
C. in the observatories
D. are observatories