It was several minutes _______ we realized what was happening~our dog was trapped in a newly-dug tunnel.
| A．since | B．before | C．until | D．while |
The place _______interested me most was the Children's Palace.
| A．which | B．where | C．what | D．in which |
It was _____back home after the experiments.
| A．not until midnight did he go | B．until midnight that he didn’t go |
| C．not until midnight that he went | D．until midnight when he didn’t go |
The car accident on the main road the other day ________ the careless driving of a driver.
| A．was due to | B．resulted in |
| C．led to | D．was resulted from |
I ordered _______pizza and salad. _______ pizza was nice but the salad was terrible.
| A．a;The | B．a;不填 | C．the；the | D．the；不填 |
______ a certain doubt among the people as to the practical value of the project.
| A．It has | B．They have | C．It remains | D．There remains |