1 . —I hope I can take part in the game show Who is Still Standing and win something.
—Stop daydreaming. You will win nothing ________ you spend a few months preparing for it.

A．since

B．unless

C．if

D．because

2 . ______I am at home, my mother keeps pressing me to study all the time.

A．Because

B．When

C．Though

D．Until