Identifying the age of layers of rock also fixes the age of fossils that are within those layers. What does fixes mean?
A. Causes
B. Hides
C. Establishes
D. Casts doubt on

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Simple Past TenseVerb, Object, PrepositionFuture Tense VerbGerunds as objects of prepositionNouns, Articles, DeterminersPRESENT SIMPLE vs PRESENT CONTINUOUS + QUANTPrepotitionsGrammar - ConnectorsGRAMMAR - Could / Could notGerund & InfinitivesOther quiz:
-ed and -ing Adjectives › ViewWe were………………….when we heard the news.
A. shoking
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Past Simple and Past Continuous › View
We can find past continuous and past simple when…
A. We are describing actions in the present.
B. We describe an action that was in progress in the past and another action interrupted it.
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Grammar › ViewThat must mean that you have to do the job.
A. It must mean you have to do the job.
B. That probably means you have to do the job.
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Tenses › View
Where _________? I _________ for her all afternoon.
A. has Kim been / have looked
B. is Kim / am looking
C. is Kim / have been looking
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