[ PRESENT TENSE ]
The principal ( observe, observes ) classes in English.
A. observe
B. observes

Random Topics:
Essential and Nonessential ClausesCountable & Noncountable NounsPassive Modals in Different TensesPrepositions of TimePronouns and AntecedentsProverbsArticlesGrammar & ReadingComparison Degree & GerundsIrregular verbsOther quiz:
Grammar › ViewComplete the sentence with the correct option.
If you had gotten up earlier, you ____________________ the earlier train.
A. would have caught
B. would have catched
C. would had caught
Simple Present vs Present Continuous › View
She……….. eating pizza.
A. likes
B. like
C. is liking
D. is likeing
Grammar › View In the backyard, a very angry squirrel threw acorns at Leroy.
A. prepositional phrase
B. preposition
C. verb
D. direct object
Sentence Completion › View
The negotiations with Johnston Company are of —– importance to Berg Electronics.
A. considerable
B. numerous
C. hard
D. advanced
