【单选题】
在JavaScript中，运行下面的代码，sum的值是（ ）。
var sum = 0;
for(i = 1; i < 10; i++) {
if(i%5==0) break;
sum = sum + i;
}
①
40
②
50
③
5
④
10
【单选题】
If I ___ it, I would do it in a different way.
①
were to do
②
do
③
had done
④
was to do