[ Modal Verbs ]
We _________________ protect the environment.
A. Mustn’t
B. Must

Random Topics:
Past Simple and Past ContinuousGrammar - to beThe Present Progressive TenseGrammar: Have toVocabulary & Phrasal VerbGrammar - help/have/let/makeSubject Verb Agreement and Coordinating ConjunctionsPassive Modals in Different TensesSimple Present TensePrepositions Of PlaceOther quiz:
Grammar and Vocabulary › ViewKeaton was a strange combination… sometimes _______, sometimes bold.
A. kind
B. moody
C. shy
Linking Verb › View
She tasted the green tea egg tart.
- action verb
- linking verb
Grammar › View
He______smart.
A. ‘m not
B. isn’t
C. aren’t
Grammar › View
We had a good vacation. We enjoyed _____ .
A. us
B. our
C. ours
D. ourself
E. ourselves
