—Alex has lost his job.—________? As far as I know, he is devoted to his work.
Someone is ringing the doorbell. Let’s see _______.
It is very common that former people have difficulty in _____ modern life.
I really don’t know ___ ___I kept the secret papers.
---Why do you look so upset? ---There are so many troublesome problems ____.
It didn’t _____ him that she would refuse his invitation