Eric, ______playing that computer game. Why not read a book?
OK, Mom.( )
A.to stopB.stoppingC.stopsD.stop
What _____ it is to go horse riding __________ weather!
________ great scientist Qian Xuesen is!
()I think _______ necessary for you _______ breakfast.
The workers were made _____ the whole day.
He often plans_________ a very relaxing vacation. A. having B. have C. to have