[ Passive Voice ]
The office ………… already …………
A. was / be clean
B. have / been cleaned
C. has / been cleaned
D. Is / clean

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Take or PutGerunds and InfitinitivesPresent Continuous, Present Perfect and Used toArticlesPerfect ModalsModals and InversionWill, Be going to, Present ContinuousGrammar - TOEICGrammarCommunicative GrammarOther quiz:
Vocabulary › ViewWhat is an example of something that mimics something else?
A. a mime
B. a trout
C. a dog
D. a goldfish
Adjective Clause › View
Dana is the person __________ I call if I need help.
A. X
B. That
C. Who
Combine the following sentences using a conjunction: The cat is black. The dog is brown.
A. The cat is black, however, the dog is brown.
B. The cat is black and the dog is brown.
C. The cat is black or the dog is brown.
D. The cat is black but the dog is brown.
Phrasal Verb › View
develop
A. Work on
B. Work up
C. Work out