I practice speaking English every day, but Tom doesn’t. He is _______ than me.

Look! That teacher is explaining something to herstudents again and again. — _________ teacher she is.

The special medicine for the disease was difficult to find though ________ everywhere.

_ is the strength of union that all the difficulties,if any, can be dealt with.

She ought to stop reading；she has a headache because she________for too long.[ ]