ESL, Niveau avancé

Caffeine

Does caffeine ......... you awake at night? Maybe you're drinking coffee too late in the day.
Does coffee wake you up when you're feeling .........?
Caffeine makes people feel more ......... and some people say that they can't function properly without a cup of coffee in the morning.
Caffeine can ......... moods, so irritable people like to drink a cup first thing in the morning.
A cup of ......... can cheer many grumpy people up in the wee hours of the morning.
Researchers say that drinking a couple cups of coffee per day isn't harmful, but some people have a very high caffeine-......... level and that isn't healthy.
If a person drinks too much coffee, he/she might feel nauseous or feel that his/her hands are ......... afterwards.
Some people are ......... to caffeine and often experience gastrointestinal problems after ingesting it.
Do you ......... on coffee to wake you up in the mornings?
Many people drink coffee throughout any given day because they have a hard time ......... awake all day without it.