There is ______ thing as a free lunch There may be a hidden cost

The only drawback of the voyage was the ______ sea, which made me very seasick.

Shall we see a film to relax ourselves after theexam —_________.

We ________ certain living things as birds not because they have long legs or short legs, but because they all have feathers.[ ]

hisplay, , is very wonderful:there are many interesting characters in it.