Correct the errors in the following sentences, if .
—Is Bob still performing? —I’m afraid not.He is saidthe stage already as he has become an officiaL
If you comesecond in the race,you’ll getqualification to compete for the next round.
Stressful environments lead to unhealthy behaviours such as poor eating habits which _______ increase the risk of heart disease.
The problem of the global warming is serious, ________,the sea levels have risen a little.
Letters to the editor must carry the writer’s full name, which indicates that writers are _____for what they say.