[ Grammar ]
He _____________ in the field all morning.
A. has been working
B. has worked
C. have worked
D. have been working
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Pronouns and AntecedentsModal Verbs and Gender NounsLanguage Features of an Opinion ArticleDefinite ArticlesParts of Speech and Compound SentencesConnectivesDEGREE COMPARISONKinds of NounsPrepositions of Location, Movement and TimeFuture Perfect TenseOther quiz:
Grammar › View……. is the baby crying?
A. Which
B. Why
C. What
Grammar › View
Hock weng is ______ intelligent boy.
A. an
B. the
C. a
D. –
Tim … 18 last month.
A. turn
B. turned
C. make
D. do
Vocabulary › View
The study was ___________ by many experts.
A. reviewed
B. review
C. reviewing
D. reviews