Multiple sets of measurements or observations in a scientific investigation.
A. testable
B. data
C. trials
D. control group

Random Topics:
Modal Verbs and Contrastive ConjunctionsVerbsVerbs: Action, Linking, and HelpingGrammar - Collective NounsMixed TensesShould and Shouldn'tDo not or Does notGrammar - too & enoughGrammar: Reported QuestionsPast Simple and ContinuousOther quiz:
Modal Verbs and Contrastive Conjunctions › ViewWhich sentence correctly combines a modal verb and a contrastive conjunction?
A. We must leave for the airport early to catch our flight, yet we might still miss it due to traffic.
B. He might attend the concert tonight, but he must finish his assignment first.
C. She should go to the gym regularly, or she might not see any progress in her fitness goals.
D. They could go to the concert this weekend, yet they could also go to the theater instead.
Grammar › View
_____ are my cats.
A. this
B. those
Grammar › ViewPut the verb into the correct tense (simple present or present progressive).
Quiet please! I am (write) _____________ a test.
>
A. writes
B. wrote
C. writing
D. writed
Relative Clauses and Past Perfect › View
Do you need the relative pronoun?
The museum which we visited last month is closed now.
_
A. yes
B. no
