Rewrite the following sentences so that the second sentence means the same as the first one.
1Scientists have invented new devices to helo people live a longer life new devices
If
3 the man had broken leg. He tried to save his wife.
In spie fo
4 I can 't tell you because I don 't know the answer
if
5 they will do the test well review them all hard
if
6. The rescue workers evacuated the villagers in the raged flood to the safe place last night
the villagers in the raged flood
7 the students will provide aids for the homeless people tomorrow
aids
8 the people will protect environmental now . The environment will be nice
if
9 they don't have a map, so they get lost
if
10 the storm destroyed many houses in this village last week
Many houses