I’m stuck with this problem; you may ask ______ knows better than I.
| A．anyone | B．no matter who | C．who | D．whoever |
The space walk will last six and a half hours and the repair of Discovery is expected to __________ a little more than an hour.
| A．take | B．cost | C．spend | D．adjust |
I really don’t want a bigger house— I’m __________ with what I’ve got.
| A．satisfying | B．satisfied | C．satisfactory | D．satisfaction |
It was just a __________ comment; I didn’t mean it to be taken so seriously.
| A．uniform | B．casual | C．humorous | D．formal |
Cycling is highly __________ to people’s health and the environment.
| A．fashionable | B．beneficial | C．changeable | D．suitable |
I’ve listened to Professor Smith’s talk about medicine,but I still haven’t got a good understanding of its key _________.
| A．notes | B．information | C．words | D．points |