[ Subject Verb Agreement ]
Regular exercise ________ to boost the immune system.
A. help
B. helps

Random Topics:
ApologizingGrammar: so and suchConditional and SubjunctiveTenses - AuxiliariesWho or WhomArticlesGrammar & VocabBASIC GRAMMAR - PRONOUNSTimePresent Tense vs Past TenseOther quiz:
Modal Verbs › ViewFill in the blank with the correct modal verb: “He ___ not be able to come to the party.”
A. can
B. will
C. may
D. might
Present Tenses › View
. Which of the following is a correct example of the present perfect tense?
A. I am living
B. She has lived
C. They live
D. He is living
Grammar › ViewIdentify the preposition. Can you jump over the hurdle?
A. you
B. jump
C. over
D. hurdle
Present Perfect and Simple Past Tense › View
I _____ (know) Julie for three years – we still meet once a month.
A. knew
B. have knew
C. has knew
D. known
E. have known
