—I’m sorry I took your pen by mistake just now.
—Oh, really? .
| A．Don’t mention it | B．That’s OK |
| C．Don’t be sorry | D．I don’t care |
— I’m sorry, but the boss isn’t here yet. Shall I have him call you when he comes back?
— No, I’ll call him back. If I call again in half an hour, do you think she ________ ?
| A．had arrived | B．has arrived |
| C．will arrive | D．will have arrived |
—What place is it?
—Haven’t you seen that we ________ back where we ________ ?
| A．were；had been | B．are；were |
| C．were；have been | D．are；had been |
—Could you tell me how your mother usually goes to work?
—Yes. If it is fine, she ________ to her office.
| A．will walk | B．will go on foot |
| C．walks | D．would go on foot |
—Did you find the missing couple in the mountain yesterday?
—No, but we ________ to get in touch with them ever since.
| A．have tried | B．have been trying |
| C．had tried | D．had been trying |
—Brandon, do you know who wanted me on the phone?
—Sorry. I don’t know. I ________ a bath in the bathroom.
| A．have had | B．was having |
| C．had | D．am having |