[ Vocabulary ]
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:
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
