Shouldn't do in studying English

1. Lose confidence to study English successful
2. Attempt too much to study English at a time
3. Do drinking in midweek
4. talk on the phone in class
5. Look at a watch in class
6. Be late for class
7. Have a dread of speaking in English
8. Dislike my mistakes.
9. Dislike to question about studying English
10. See the answer before trying question