____ at a college or university in the USA, Chinese and other international students must demonstrate a strong ability in spoken and written English.
--Would you mind if I used your mobile phone? -- _______, please.
All the guests at the party were dancing and singing happily _____ the electricity was cut off.
The government is trying hard to give the people easy _____ to hospitals.
The ___ look on his face suggested that he ____ so.
--His mother dances well. -- So _____ and so _____.