Which present is correct?
Check
I ... so I cannot talk right now.
???
runs
is running
have run
are singing
am
run
ran
am running
Hurry, the motor ... .
???
runs
is running
have run
are singing
am
run
ran
am running
The students ... enough. Stop them now.
???
runs
is running
have run
are singing
am
run
ran
am running
They ... my favourite song at the moment.
???
runs
is running
have run
are singing
am
run
ran
am running
My car ... fast .
???
runs
is running
have run
are singing
am
run
ran
am running
The children ... all the time.
???
runs
is running
have run
are singing
am
run
ran
am running
Check
OK