It’s always difficult to live in a foreign country, ______ when you don’t speak the language.
_______ he lain quietly as what the doctor had said, Tom __________ so much now.
At present, even selling newspaper and magazines will make a very good .
She will take a(an) class in English.
Working hard is not a only of great success, but it is among the essential requirements.
The government has promised to take to help the laid-off workers find new jobs.