Many people agree that ________ knowledge of English is a must in ________ international trade today.
I've never seen a Shakespeare's play ______ so wonderfully.
Tom's shoes looked just the same as Mike's, but they cost _______ his.
Mother, together with her children , ______ to the hospital.
The war made ______ impossible for the scientist to go on with his research.
He often takes this road to avoid ______ the troublesome boy.