Have you realized the difficulty we have ____ the problem?
| A．worked out | B．to work out | C．work out | D．working out |
— I suppose I’ll have to ask someone else to see me off .
— I’m afraid so . I would see you off if I,but I.
| A．would ; won’t | B．could ; can’t | C．might ; needn’t | D．should ; mustn’t |
When I passed this afternoon ,I saw Mary lying on the grass, her handsunder her head.
| A．having crossed | B．crossing | C．crossed | D．to cross |
— Why didn’t you pay the accommodation rent?
—The rent? .
| A．It all depends. | B．It’s up to you . | C．You are crazy . | D．That isn’t due yet |
—the accident happened? — It’s said to happen on his way to work
| A．Do you know it is where that | B．where is it that do you know |
| C．Do you know where it is that | D．where do you know it is that |
— Can we get everything ready by the weekend?
— It all depends on we can get Mr Green’s cooperation.
| A．that | B．what | C．whether | D．if |