I have done much of the work. Could you please finish _______ in two days?

As we were asleep, ＿＿ of us heard the sound .

Many people have donated that type of blood; however, the blood bank needs ______.

---He found a baby in his car when he came back from the supermarket. And         was crying for some milk. --- When was        ?---      was in 2000 when he was still in college. 

(2013·高考四川卷)The traffic on the main streets has a longer green signal than________on the small ones.