—Mom, I wonder ________.—Baby, I think you should study harder.
It’s generous _______ her to donate so much money to UNICEF. Now she thinks it's important _______her to help children in need.
---It’s very hot outside. Would you mind ________ the door? --- _______. It’s the hottest day this month.
---Are you going to take part in the speech competition? ---________. It’s too good a chance to miss.
Our school is so famous that ______ people come and visit it every term.
People living in cold climate prefer ______ warm colours ________ a warm and comfortable feeling.