27.It was the President himself______ opened the door.
Wouldn’t it be _______ for you to pick me up at four o’clock and take me to the airport?
They had planned to go for a picnic, but because of the rain they had to stay home_______.
. Many people are quite at a loss as to what to do _______ a real fire.
---- I haven’t got the ticket for the opening ceremony of the 2010 Shanghai World Expo. ---- Don’t worry. It’ll be broadcast_______ on April 30. Don’t miss it.
The government should protect the old valuable buildings_______ they are not in harmony with the modern ones nearby.