[ Vocabulary ]
A ________ is any condition in an experiment that can be changed.
A. control
B. experiment
C. scientific method
D. variable
Random Topics:
Personal & Possessive PronounsGrammar, Conditional Sentences, VocabularyUnless If First ConditionalWishesFrequencyComparative and Superlative AdjectivesModalAuxiliary VerbsVerb, Object, PrepositionSentence StructureOther quiz:
Future Tenses › ViewWhat a beautiful day!
A. It won’t rain today.
B. It’s not going to rain today.
C. It doesn’t rain today.
D. It isn’t raining today.
Gerund or To Infinitive › View
He is saving money ______ a new car
A. Bought
B. Buy
C. Buying
D. To buy
Grammar › ViewWhich sentence is written correctly?
A. The silly dog cann’t reach the water dish.
B. The silly dog can’t reach the water dish.
C. The silly dogg can’t reach the water dish.
D. The silly dog can’t reech the water dish.
Tenses › View
Which one is not correct? We use the past simple for …
A. temporary situations in the past
B. single completed actions
C. the main events in a story
D. general truths about the past