[ Science ]
How long is a day?
A. 24 hours
B. 23 hours and 56 minutes
C. 23 hours and 57 minutes

Random Topics:
Present, Past and Future TenseNounsLanguage Features: Reflective ArticleConditional SentenceModals TensesConjunctive Adverbs and PunctuationPresent Perfect TenseSimple Present - Negative & InterrogativePunctuationGrammar - Place and MovementOther quiz:
Tenses › ViewPuan Aminah _____ a better cake for us two days ago.
A. bake
B. bakes
C. baked
D. baking
Tenses › View
…… is ready to launch now.
A. the space shuttles
B. the spaces shuttles
C. the space shuttle
D. the spaces shuttle
Grammar › ViewThe book came out yesterday, but I _________________ it.
A. The book came out yesterday, but I have already read it.
B. The book came out yesterday, but I has already read it.
C. The book came out yesterday, but I have already readed it.
Conjunctions › View
Is she happy…….sad?
A. and
B. or
C. but