[ Grammar ]
We …….. protect the planet. We are obliged to care for our world
A. must
B. could
C. might
D. needn’t

Random Topics:
Vocab CheckingGrammar - direct/indirect objectsPersonal Pronouns and VerbSentencesModal Auxiliaries and To Be VerbsVerb to beMixed ConditionalsModal and Relative PhrasesTransition WordsGerund vs InfinitiveOther quiz:
Modal Auxiliaries › ViewMy cousin __________ come over this weekend if she can get a ride.
A. would
B. might
C. could
Grammar › View
_______ I didn’t know the girl’s name, I could still remember what she looked like.
(A)After
(B)Before
(C)Although
(D)Because
Have you got _____ you need for the picnic? I can help you get it if necessary.
A. Something
B. Everything
C. Nothing
D. Anything
Vocabulary and Grammar › View
We should protect the ________________.
A. environment
B. environmental
C. global warming
