[ Grammar ]
They …. know if the floor is slippery.
A. is
B. am
C. are
D. were

Random Topics:
Passive Voice - Present ContinuousRelative Clauses and etcSimiles and Body IdiomsCohesive DevicesAdjectives & PrepositionAuxiliary Verbs & Question TagsAdjective & AdverbSentence Structure and ConjunctionsTOEFL Adjective and AdverbGerund & InfinitivesOther quiz:
Grammar › ViewEva was tired because she _____ the night before.
A. didn’t slept
B. hadn’t sleep
C. hadn’t slept
Grammar › View
Does the sentence below use a gerund?
Macy and Frank are going to the amusement park.
A. with gerund
B. no gerund
Grammar › ViewShe ___ her bicycle to work today.
A. ride
B. rode
Present Tenses › View
we _____ a lot of fun with the new vido games at the moment.
A. have
B. had
C. are having
D. were having
