| A．probable | B．possible | C．perhaps | D．likely |
He wondered __________ the pyramids were built.
| A．what |
| B．that |
| C．if |
| D．how |
He insisted that he __________ and that he ________ nothing wrong.
| A．be set free; should do |
| B．set free; should do |
| C．should set free; had done |
| D．be set free; had done |
---It's reported__________the new underground line has been completed.
---Yes, but it hasn't been made clear ________ it's to be opened to traffic.
| A．when; when |
| B．that; that |
| C．when; that |
| D．that; when |
Not until ________did he leave.
| A．I came back |
| B．did I come back |
| C．came back I |
| D．came I back |
I _________ in the countryside, but these days I________ in the city.
| A．used to live; am used to live |
| B．was used to living; used to live |
| C．was used to live; used to live |
| D．used to live; am used to living |