Natural resources _________________to protect our planet.
A. must not be conserved
B. must be conserve
C. must not be conserving
D. must be conserved

Random Topics:
Grammar: was/wereSimiles and Body Idiomsand, so, but, becauseThe Future Simple Tenseas...as, comparatives, superlativesSimple vs Continuous Past TenseConjunctions and PrepositionsPhrases and TensesGerunds & Infinitives + VocabularyCountable - UncountableOther quiz:
Stative Verbs and Tenses › ViewDifferentiate between a stative verb and a dynamic verb with examples.
A. Stative verb example: ‘run’ (She runs every day)
B. Dynamic verb example: ‘think’ (She is thinking about her future)
C. Stative verb example: ‘eat’ (She eats breakfast every morning)
D. Stative verb example: ‘believe’ (She believes in ghosts). Dynamic verb example: ‘run’ (She is running in the park).
Adjectives and Articles › View
Which is the superlative form: ‘bright, brighter, ___’?
A. brightest
B. brightestest
C. brighterest
D. brighting
Modals › ViewI ___ be able to attend the meeting tomorrow.
A. can
B. will
C. might
D. would
Phrasal Verbs › View
You have to ________ a lot of new information when learning something.
A. join up
B. pick up
C. wear out
