[ Grammar ]
This problem ______by your brother yesterday
A. was solved
B. will be solved
C. is solved
D. solves

Random Topics:
Adverbial ClausesModals of Obligation & ProhibitionNarrative, Past TensesContrastive ConjunctionGerund, Infinitive, Bare VerbPresent Continuous for FutureHas and HavePossessive AdjectivesGrammar-Verbs & Nouns Singular, Plural, Gender3rd Person SingularOther quiz:
Present Tenses › ViewNick is so concentrated. He ________________ a poem.
A. writes
B. has been writing
C. is writing
D. has written
Modals and Adjectives (ed-ing) › View
She _____ be _____ after such a long journey.
A. Could/Tiring
B. Could/Tired
C. Must/Tired
D. Must/Tiring
Subject-Verb Agreement › ViewThe date and time of the accident ___ not certain.
A. Was
B. Were
C. Are
D. Is
Vocabulary › View
different from each other or caused to be different from each other
A. discuss
B. analogy
C. vary
D. descend