[ Grammar ]
_______________ is the biggest mammal on land, the buffalo or elephant?
A. Where
B. Which
C. Why
D. Who

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Grammar › ViewRob ____ a scientist.
A. am
B. is
C. are
Relative Clauses › View
With no name on the package, the delivery man was unsure ______________________ to give the package to.
A. for who
B. whom
C. for whom
D. whose
Vocabulary › ViewWhat does “time has come” mean?
A. The appropriate moment to do something has arrived
B. To create something from materials
C. To forget about something
D. To stay awake
Future Tenses › View
The lesson _____ soon. I think we should sit down.
A. will start
B. is going to start
C. is starting
D. starts