____ he studies more, he will fail his exam.
maybe
should
if
unless
We ____ hear the doorbell _____ we continue shouting.
will, if
will, unless
won't, if
won't, unless
_____ it rains, I won't go to the park.
If
She ____ be late if the train is delayed.
will
If I ____ (see) her, I ____ tell her.
see, will
enough / shoes / will / have / money / I / If / buy / I / new
If I have enough money, I will buy new shoes
isn't / time / unless / we / there / enough / will / game / another / play
Unless there isn't enough time, we will play another game.
iceberg / cross / hit / North / ships / If / could / Atlantic / winter / an / in / the / Ocean / they
If ships cross the North Atlantic Ocean in winter, they could hit an iceberg.
