Many difficulties have ______ as a result of thechangeover to a new type of fuel.

Does your Dad quit smoking, Jenny?— Yes, but he ____ for almost ten years[ ]

What a great weight she felt ________ off her mind themoment she heard she had passed the College Entrance Examination!

We are _______ tired to go any ____________. Let’s stop to have a rest.

Please ask the salesgirl ____