[ 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:
Past Continuous Tense › ViewWhat/ doing/ were/ yesterday/ ?/ you
A. What were you doing yesterday?
B. What you were doing yesterday?
C. What you doing yesterday?
D. What was you doing yesterday?
If Clause › View
If it _____ rain tomorrow, we’ll have a picnic.
A. doesn’t
B. wouldn’t
C. didn’t
D. won’t
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
