How does a volcano form?
A. when ice from glaciers build up
B. when rocks build up around a mountain
C. when lava pushes up through an existing mountain
D. when a lot of lava flows out at one spot and forms a mountain

Random Topics:
Determiners & QuantifiersSimple and Compound SentencesModals of PredictionLinking Verbs & Helping VerbsDEGREE COMPARISONPast Tense and Perfect TenseVocabulary and ModalsSubordinating ConjunctionPast Simple, Present Perfect TenseModal Verbs for Permission and ObligationOther quiz:
Grammar › ViewWhich choice correctly completes the following sentence?
Terry complained when it was time to walk the _____ Siri enjoyed taking the dog for a walk.
A. dog and
B. dog, and
C. dog but
D. dog, but
Narrative Tenses › View
Complete the phrase: “Last night I met my friends at home and we _________.”
A. had been having dinner together.
B. were having dinner together.
C. didn’t had dinner together.
D. had dinner together.
Grammar › ViewI _______________ my face at the moment.
A. was washing
B. am washing
Vocabulary and Grammar › View
She ________________ in Bangkok.
A. is live
B. live
C. lives
D. living
