[ Grammar ]
Choose the correct verb form: 20 percent of the work (has/have) been done.
A. has
B. have
C. had
D. having

Random Topics:
Passive Voice Present SimpleGrammar Pronoun and Singular Plural NounGerunds and Modalsgoing toNounSimple Past - Irregular VerbsPast SimpleBare Infinitive and To InfinitiveVerbal and Appositive PhrasesPronouns and QuantifiersOther quiz:
Tenses › ViewI write a letter every weekend.
A. Present Simple
B. Present Continuous
C. Present Perfect
D. Past Simple
Grammar › View
What is this Country?
A. Germany.
B. Brussels.
C. Poland.
D. France.
She…..to Michael before because she was too shy to start a conversation
A. hadn’t spoken
B. hadn’t spoke
C. had spoken
D. hadn’t speak
Present Tenses › View
But look! Today she (go) ………. by bike.
A. goes
B. is going
C. go
D. are going
