[ Grammar ]
Choose the correct verb form to make a sentence in present perfect.
I _______________ to the USA.
A. went
B. has been
C. been
D. have been
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Grammar › Viewsam named his pet rufus
Which answer is correct?
A. Sam named his pet rufus.
B. sam named his pet Rufus.
C. Sam named his pet Rufus.
Grammar › View
He has been very interested in doing research on __________ since he was at high school.
A. biology
B. biological
C. biologist
D. biologically
Grammar › ViewI’m going to………for the new job
A. Be interviewing
B. Have interviewed
C. Be interviewed
D. Interview
Prepositions › View
The plane fly __________ the mountains.
A. At
B. Over
C. On
D. Under