John _____ there since the year before, so he ______ them.
A: had worked...knew
B: had worked...had known
C: worked... knew
D: worked...had known
A: had worked...knew
B: had worked...had known
C: worked... knew
D: worked...had known
举一反三
- He said he ____ in that factory since 2005. A: has worked B: had worked
- 23.What had the man done before he started the shoe-making company? A: He had started five companies. B: He had worked as a technician. C: He had worked in South America. D: He had taught five media courses.
- By the end of last week, he ________ in the company for 10 years. A: had worked B: had been working C: will have worked D: would have worked
- We were not surprised at ______ , for he had worked so hard.
- The workers _____ busily when the boss came to look for something he ______ in the office. A: had worked, had left B: were working ; had left C: working ; had left D: had worked; left