Chuck，________ You look unhappy.—I broke my new glasses.I’m afraid to tell Mum about it.

The invention of steam engine greatly sped up the industrial revolution, which _____ a lot to the take-off of the world. [ ]

The reason I’m writing to you is to tell you about a party on Saturday.

Is the book on the desk —______. It’s under the desk.

He has _____ little education that he finds it impossible for him to be equal to ____ important a task