Mr. Wang would have continued to lead _____ poor life instead of changing his lifestyle if he hadn’t met Mr. Smith by_____ accident who was a businessman.
| A．the; a | B．a; the | C．a; / | D．/; the |
It was 4:25 a.m. _____ the ambulance arrived to take the body of Miss Lee.
| A．when | B．until | C．that | D．since |
It was years _____ I had visited my hometown in Dalian, Liaoning Province.
| A．after | B．that | C．since | D．when |
Not until _____ his shoes did he enter one of the rooms of the Japanese house.
| A．he removes | B．did he remove |
| C．he had removed | D．had he removed |
“On no account _____ to feed the animals,” the warning can be seen on the signboard on front of every cage (笼子).
| A．allow visitors | B．are visitors allowed |
| C．visitors are allowed | D．are allowed visitors |
Not only _____ a writer but he was an artist for a time.
| A．he is | B．he was | C．is he | D．was he |