_____ the Internet is of great help, I don’t think it’s a good idea to spend too much time on it.
He started to walk faster and the children had to run to ________him.
This chapter is so difficult to ______ that I shall have to read it again later.
I lost my ______ and fell off the bike.
---Do you know where David is? I couldn’t find him anywhere. ---Well. He ______ have gone far----his coat’s still here.
You can’t imagine that a well-behaved gentleman _____ be so rude to a lady.