Today's __________ of birth control make it possible for a couple to choose whether or not to have a child.
---Are you still going to Shanghai for the Spring Festival? ---Yes, but I really __ because I have a lot of things to deal with.
---Look! The clouds are gathering. ---Yes. I’m afraid it __ be pouring down soon.
The poor boy __ the test again; in that case, his mother will be very disappointed.
It’s said that there are plenty of hotels in that town. There___ be any difficulty for you to find somewhere to stay.
I ___have written to him because he phoned me shortly afterwards.