My best friend sits next_____ me. [ ]

scientists have done a lot of research on A (H1N1) flu, there are still some cases for further study.[ ]

You should your teacher’s advice if you want to improve your science.— That sounds great.

Yesterday we went to the beach and had great fan in the sea .

Toby ______ talk ______ and does ______. Then he can be a good boy.