I didn’t know ______ to London.
My pet dog ____ five months ago. Its ____ made me very sad.
We can go hiking next week ____ it rains heavily.
–Look at the woman, why does she look so tired? --Because she has three babies to ____.
There are so many good books. I really don’t know ____ .
Our English class is so ____ that all of us are _____ in it.