[ Grammar ]
After the physics lesson, the children know that water ____ at 100 degrees C.
A. will boil
B. is boiling
C. boils
D. boil

Random Topics:
Present Perfect SimplePersonal & Possessive PronounsRelative Pronouns and AdverbsGrammar - Wh QuestionsSentence StructurePassive Voice - Present ContinuousAdverbial Clauses of Manner and ResultPast Progressive TenseLinking Verbs and TensesThings in EnglishOther quiz:
Reported Speech › ViewShe said “I’m sorry I didn’t reply to the letter.”
A. She apologized for didn’t reply to the letter.
B. She apologized for not replying to the letter.
C. She apologized for not to reply to the letter.
D. She apologized for not to replying to the letter.
Grammar › View
he/she is an ox
A. a person is really big and strong
B. a person is a good farmer
C. a person likes to eat standing up
D. a person has many friends
Grammar › ViewWhich is a common noun?
A. dog
B. Mr. Smith
C. Frog Creek
D. Sally
Past Continuous › View
I was following her when suddenly she ________.
A. stops
B. was stopping
C. stopped
D. stop
