Volcanoes swell when
A. air builds up inside it.
B. there is too much rain.
C. magma pushes up inside it.
D. lava shoots out and falls back inside it.

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Past Perfect vs Past SimpleAdjective + to + VerbSimple Present Tense/be/Present ProgessiveLinking Words and Conjunctionas...as, comparatives, superlativesQuantifierIndependent ClausesGender and GrammarRelative PronounComparatives ( adj/ adv)Other quiz:
Conditionals › ViewConstruct a second conditional sentence using the words: ‘If / I / have / a million dollars, / I / buy / a big house.’
A. If I have a million dollars, I buying a big house.
B. If I have a million dollars, I will buy a big house.
C. If I had a million dollars, I would buy a big house.
D. If I have a million dollars, I bought a big house.
Grammar › View
Nani _________ towards the ball now.
A. runs
B. is running
C. are running
Grammar › View….……. this movie last week, I still wanted to see it again.
A. have seen
B. having seen
C. had seen
D. seeing
Gerund vs. Infinitive › View
REMEMBER _____________ ME WHEN YOU ARRIVE
A. CALL
B. TO CALL
C. CALLING
