—What's the matter with Della?—Well,her parents wouldn't allow her to go to the party,but she still ________.
50. When they met, they stopped and said hello to_______.
51. After everyone took_______ place, the meeting began.
52. -Why don’t we take a little break? -Didn’t we just have _______?
53. If you want to change for a double room you’ll have to pay ___$15.
54. We should always keep ______ well-informed of the changing information.