She asked Mark to __________ the children while she went to the shops.
We all agree that she is____________________ student in our class.
We must push the piano to the corner of the hall to_____________________ our party tonight.
There has been a great increase in retail sales,_____________________ ?
Tom: "___________________ " Mike: "I won't say no!"
The phrase "keeps sellers on their toes" in the passage mostly means "______".
The pool should not be made so deep______small children can be safe there.
The examination was not very difficult, but it was_____________________ long.
Education in many countries is compulsory________the age of 16.
_______ has been a topic of continual geological research.
As a millionaire who liked to show off her wealth, Mrs. Smith paid______________________________________________ we asked.