At present, 1 in every 10 people is aged 60 years or older, ______ in 2050, 1 in every 5 people will be aged 60 years or older.
-- A medical team was sent to Japan by air five hours ago. ---So they_____ have arrived by now. The flight usually takes four hours or so.
--Can I call you back at two o’clock this afternoon? ---- I’m sorry , but then I ______ to Beijing . How about five ?
Pointing to the house on _____ roof grew lots of bush , the old man told me that was ________ I would stay.
Sarah hopes to become a friend of ________ shares her interests.
Don’t worry, sir! All payments ____ be made by the end of the month.