№4. Choose the correct prefix to make negative adjective (im, ir, il, in).

1. He’s a good teacher, but tends to be a bit impatient with slow learners. 2. It is an illogical statement, because if one part is true, then the other must be. 3. It is impolite to point at people. 4. My friend is very irresponsible, he never does anything in time.