—Will you go to Mary’s wedding party tonight?
—I’m afraid not. I _______ my brother’s.
| A． will attend | B． have attended |
| C． am attending | D． will be attending |
—Hey, can I ask you a favor?
—Sure, _______
| A．here you are. |
| B．just as I thought. |
| C．how is it going? |
| D．what can I do for you? |
--- Shall we go for a drink at one o’clock this afternoon?
--- . Will two o’clock be OK?
| A．Sure, it’s up to you |
| B．Sure, no problem |
| C．Sorry, I can’t make it |
| D．Sorry, I’m not available today |
Scientists study ____ human brains work to make computers.
| A．when |
| B．how |
| C．that |
| D．whether |
The notice came around two in the afternoon____the meeting would be postponed.(2012•江苏)
| A．when |
| B．that |
| C．whether |
| D．how |
____medicine works in a human body is a question ____ not everyone can understand fully.
| A．How; that |
| B．That; which |
| C．What; which |
| D．What; that |