What’s your mother like —-.

When the American constitution ______into effect in 1789,it didn’t contain any words guaranteeing the basic rights of ordinary citizens

What were you doing when I phoned you last night?— I ______ my homework and was starting to surf the Internet

I’m sorry to have broken your pen. I wasn’t onpurpose.––_______. I’ve got another one.

Bach died in 1750，but it was not until the early 19th century ________his musical gift was fully recognized.