11. Although the working mother is very busy, she still ____ a lot of time to children.
Professor Johnson is said _____ some significant advance in his research in the past year.
—You must obey every word of mine! — _____ I don’t?
When you have finished with that book, don't forget to put it back on my desk, _____?
Teddy came to my _____ with a cheque of $200 to pay my room rate, after I told him that my wallet had been stolen.
Wouldn't it be _____ wonderful world if all nations lived in _____ peace with one another?