---- Who’s that? ---- ____ Professor Li.
Because they hadn’t booked a room in advance, there were______ left when they arrived at the hotel.
We were caught in________ heavy rain but afterwards we enjoyed_________ bluer and cleaner sky.
The notice came around two o’clock in the afternoon _______ the meeting would be put off.
--What should I prepare for him?--________ anything. He is not particular with food.
He had no choice but to go on because it is their agreement that no one ______ quit the plan half way.