Even if you learn something well, you ______ it unless you use it.( )
forget
forgot
have forgotten
will forget
I like smart clothes ____are made of silk.( )
who
which
what
Please hurry up!The plane will _______________in half an hour.( )
take up
take after
take off
Only at that time ___________that he was wrong.( )
he realized
did he realize
he did realize
___________ helpful advice she gave me on how to get on with others!( )
What
What a
How
I was deeply moved by the film,Hi,Mum.I think it's well worth _____________.( )
to watch
watch
watching