—My bicycle didn’t work yesterday, so I didn’t go there with Tom.
—You mine. I wasn’t using it then.
| A．can have used | B．need have used | C．must have used | D．could have used |
Why these things happened was ____ the driver had been careless.
| A．because of | B．owing to | C．due to | D．that |
They had camped once before, ____ they knew what to take.
| A．because | B．now | C．so | D．since |
____ you are dismissed.
| A．Neither you go nor | B．Either you go or |
| C．Whether you go or | D．Both you go and |
He is very old,____ he still works very hard.
| A．but | B．if | C．when | D．as |
---You are so lucky.
---What do you mean ____that?
| A．for | B．in | C．of | D．by |