It was a hard time for him. He tried his best to keep his head in a calm_______.
The manager came up to see _________
______lovely weather we are having these days.
-------How much is the ticket to Central Park?--------A one-way ticket_______$40,and you can _____another $20 for a round-trip.
-----Do you think Peter would be a good monitor?-------______________.
-----Pay attention to details when solving difficult problems.------______________.