It is ________ that I can still remember ______ was discussed at the meeting.
| A．sure; when | B．sure; what | C．certain; when | D．certain; what |
The top of the hill is _________,but the trees grow part way up its slope.
| A．empty | B．vacant |
| C．blank | D．bare |
Happy birthday,Alice!So you have __________ 21 already.
| A．become | B．turned | C．grown | D．passed |
Don’t leave matches or cigarettes on the table within __________ of little children.
| A．hand | B．reach | C．space | D．distance |
Pop music is loved by lots of people,but it is not to everyone’s _______.
| A．smell | B．favor | C．sound | D．taste |
—What’s the matter,doctor?
—Nothing serious.Take this medicine according to the __________,and you’ll get better soon.
| A．introduction | B．explanations | C．suggestions | D．instructions |