Exercise 4  Find a mistake in the four underlined parts of each sentence.<!--[if supportFields]> TOC \o "1-5" \h \z <!--[endif]-->                         

1. There is a lot of books on the bookshelf in his room.

              A     B                 C             D

2. I'm so thirsty, but there aren't any water in the bottle.

           A               B              C                     D

3. We are standing in front the armchair and taking some photos.

                                     A                  B              C                  D<!--[if supportFields]><!--[endif]-->

4. Do you keep silently when your teacher is explaining the lessons?

        A                  B                      C                     D