[ Tenses ]
It is a clear fact that we ___ most of the precious natural resources by the time we ___ to do something to protect them.
A. have lost / will decide
B. will have lost / decide
C. had lost / have decided
D. are losing / decided
Select your answer:

Random Topics:
Past ModalsModals TensesAdjectives with -ED and -INGConditionalComparativePast Tense and Past ContinuousVerb IdentificationConjunctions in Complex SentencesPast Simple (Questions)Gerund and To InfinitiveOther quiz:
Conditionals III - Mixed 1st, 2nd & 3rd Conditionals › ViewIf James … me a lie, I would have been very angry.
A. told
B. tells
C. would’ve told
D. had told
Modals › View
Which modal is used to express necessity
A. should
B. must
C. ought to
D. could
