We should keep the classroom_____________and tidy.

Thanks a lot for your book. I found it very interesting.—________. I’m glad you enjoyed it.

Where on earth have they gone?—I have no idea, but I wish I .

It is beyond my understanding that many adults ______ be so crazy about Harry Potter series.

The positive meaningswords in an ad and how they are presented in an interesting way play an important role in promoting a product