Very generally, grammar is ______ with the relations between words in sentences.[ ]

In 2009 many countries are going through financial crisis，________has a great effect on many walks of life.　　　　　　　　　　　　　　　　　

_____ to evening classes since last month, buthe still can’t say “What’s your name” in Russian.

He hasn’tgot any hobbies—_______ you call watching TV a hobby

Everyone _____ make mistakes．So you needn’t care about it that much．