What would have happened __________ , as far as the river bank?
| A．Bob had walked farther | B．if Bob should walk farther |
| C．had Bob walked farther | D．if Bob walked farther |
____ I’ve known your situation, I’ll send the money to you imediately.
| A．Now that | B．In case | C．On condition that | D．So long as |
When the invader arrived, millions of people ____ from their homeland.
| A．had turned away | B．were turned away | C．had turned out | D．were turned out |
They are ___ the old houses in order to set up a new teaching building.
| A．tearing down | B．tearing up | C．putting up | D．putting down |
You should ___ the students instead of just telling them what to do.
| A．reason to | B．reason with | C．explain | D．say |
It has rained for a whole day.But I think it's going to ___.
| A．put up | B．clear up | C．build up | D．call up |