[ Gerunds/Infinitives ]
They keep in shape by every day.
A. exercising
B. to exercise

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Grammar - must & have toGerund & ParticipleGrammar for IELTSComparative & Superlative AdverbsPresent Simple Tense PassiveDirect and Indirect QuestionLinking Words & PhrasesQuantifiers: too many, too much & enoughPronoun-Verb AgreementPassive and Active VoiceOther quiz:
Conditional › ViewI will be mad if you ________ late again
A. don´t be
B. be
C. are
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Which of the following answers the question ‘How much?’
A. Frequently
B. Too much
C. Often
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a. heavy
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Grammar › View
John and his brother __________ perspiring profusely when they played football in the park.
A. is
B. are
C. was
D. were