--- Where is Jim?      --- He _________ to the museum. He hasn’t come back.
#40022
A
have been
B
have gone
C
has gone
D
has been
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Hello! I'm very glad to see you. When_________ you_________ here?
#42301
A
did; arrive
B
will; arrive
C
have; arrived
D
are; arriving
Don’t make a noise! They _______on a physics problem now.
#41516
A
will work
B
are working
C
worked
D
have worked