1.Mr Read made up his mind to devote all he had to ( )some schools for poor children .
A.set up B.setting up
2.Don't worry .We'll fill our car up before the gas( )
A.run out B.has run out

1.Mr Read made up his mind to devote all he had to (setting up )some schools for poor children .

devote sth to doing sth 把...献给

all he had 中的all 是devote的宾语，而he had 是all的定语从句，中间省略了引导定语从句的关系词that。完整的句子应当是all that he had，这里的all是不定代词，相当于all the money

2.Don't worry .We'll fill our car up before the gas( runs out )
run out用完；耗尽
该句中“汽油用完”的动作还未发生，本来应该用将来时的，但是因为该从句是由before引导时间状语从句的，所以就用了现在时替代将来时。
注：在时间状语从句、条件状语从句和让步状语从句（even if，even though）中，要用一般现在时替代一般将来时。