They ___________ sailing since yesterday. I think they’ve lost the route.
A. Have
B. Have been
C. Has been
D. are

Random Topics:
Progressive TensesInfinitive GerundGrammar : Structural Common ErrorsVocabullary TestGrammar of Future PlansFuture Simple TenseGrammar - to be, possessive, have gotFirst Conditional SentenceVerb + Infinitive or GerundTime ClauseOther quiz:
Grammar › ViewWhat is the correct form of the adjective in the sentence: This is the (good, better, best) book I’ve ever read.
A. great
B. better
C. good
D. best
Grammar › View
Fix this sentence: “i want to go to the grand canyon in december.”
A. i want to go to the Grand canyon in december.
B. I want to go to the Grand Canyon in December.
C. I want to go to the grand canyon in december.
D. i want to go to the grand canyon in December.
Grammar › ViewThe police ______ four thieves last night.
A. was catching
B. caught
C. is catching
D. will catch
Grammar › View
Choose the correct answer.
Is there a trash can in the bedroom?
_
A. Yes, there is.
B. No, there isn’t.
C. Yes, there isn’t.
D. No, there are
