-Look ! There is a hole the wall. The mouse must run away from here.-I think so. If there is not a picture the hole, we can easily find it.
My bike is lost. I can’t find _______. So I want to buy a new _________.
___________ stars were shining in sky at night.
I will call you _________ I come back from Beijing.
I ________ believe it __________ I see it with my own eyes.
Come on, Sam! I have _________________ to tell you.