He felt bored and decided to leave the party, _______ a miserable old man showed up and attracted his attention.
A: when
B: while
C: until
D: since
A: when
B: while
C: until
D: since
举一反三
- The old man felt __________ and protected since his new neighbor was a policeman.
- When did the man return to work since the last time he ill A: When he felt better. B: When he had to. C: When his wife told him to.
- I felt somewhat disappointed and was about to leave， ________ something occurred which attracted my attention.
- No one knew the man's age until he _____ it by accident. A: uncovered B: exposed C: revealed D: showed up
- While a young man, he decided to put aside a little money every month to make for his old age（） A: provision B: supply C: adjustment D: insurance