The shocking news made me realize ________ terrible problems we would face.(2011·北京)

I go home ____5:30 Sunday afternoon.

Do you know ______an “o” and _____ “u” in the word “computer”

Susan her friend’s invitation because of an important meeting.

Leonardo DiCaprio won_______ Oscar for his role in The Revenant(荒野猎人) and he made_______ powerful speech about the climate change on Sunday night.