Lisa was so careless that she made many spelling ________ in her homework.

Don’t throw that away — it might come in handy.

Since the accident has happened,don’t be sad.It’s no useover the spilt milk.[ ]

mber the first time we met,Jim— Of course I do. You _______ in thelibrary.

Over the past decades,sea ice___________in the Arctic as a result of global warming.[ ]