[ Phenomenon(s) vs. Phenomena ]
These amazing natural … occur on earth.
(a) phenomenon
(b) phenomena
(c) phenomenons

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Give, do and makeRun-On SentencesWh- Questions Present Simple TensePersonal & Possessive PronounsModifiersActive-Passive VoicesTenses - Pasive VoicePunctuating ClausesTransition WordsProgressive TensesOther quiz:
Grammar › ViewWhen the subject is a pronoun, the verb must agree with the pronoun’s case. What is the correct verb form to complete the sentence? They (is/are) going to the park.
A. Is
B. Are
C. Was
D. Were
Passive Voice › View
Active: They are going to plant trees.
Passive: Trees________
A. Are going to be planted
B. Are being planted
Grammar › ViewI … this book. I know everything about it.
A. have read
B. am reading
C. read
D. was reading
Grammar › View
If we go ______ for spring break, we will have a good time.
A. their
B. there
C. they’re
