What has happened in your hometown— Great changes _____ in my hometown recently.

What the remote areas need ____ education to children and what the children need ____ good textbooks at the moment.

What a mess！You are always so lazy!—I’m not to blame，mum.I am you have made me.

It’s ________ you to sit there doing nothing at all while others are so busy.

.Most birds find it safe to sleep in the trees, but __________ they have eggs or young chicks, they don’t use a nest.