Mum won't let Simon go out unless he promises to be back ______ 10 o'clock tonight.( )
A.tillB.beforeC.asD.since
﹣_______ this in English?
﹣It's a book.( )
A.WhichB.WhatC.What's
I don't like the people ______ don't help others when they are in trouble.( )
who
which
whose
what
﹣Could you please tell me ______?
﹣At 8:00pm.( )
when will the train leave
when the train will leave
where the train will go
where will the train go
I have ______ finished my homework.I finished it an hour ago.( )
yet
already
ever
never
﹣What's the meaning of "secretary"?
﹣Let me ______ the word in the dictionary.( )
look at
look for
look after
look up