[ Subject-Verb Agreement ]
He (has/ have) been my best friend since first grade.
A. Has
B. Have

Random Topics:
Prepositions of Timeduring, for, whileVerb Tenses and Sentence StructureLexico and GrammarModal Verbs of ObligationOrder of AdjectivesLinking VerbConditionalModal VerbFuture Simple TensesOther quiz:
Pronoun-Verb Agreement › ViewCarrie and Linda _____ the park to play.
A. walk
B. walks
Grammar › View
My friends offered __________a holiday in Halong Bay for a change.
A. to take
B. taking
C. on taking
D. of taking
Present Perfect and Present Perfect Progressive Tenses › ViewShe ___ (live) here for ten years.
A. lives
B. has lived
C. have lived
D. has been living
Vocabulary › View
To surround something on all sides is to _____ it.
A. grumble
B. provision
C. enclose
D. nourish