With sufficient scientific information a manned trip to Mars should be _____.
| A．obtainable | B．potential | C．considerable | D．feasible |
Don't _____ the news to the public until we give you the go-ahead (许可，准许).
| A．release | B．print | C．relieve | D．publish |
His _____of the aeroplane was correct in every detail and could really fly.
| A．shape | B．pattern | C．design | D．model |
The most important _____ of his speech was that we should all work whole-heartedly for the people.
| A．element | B．spot | C．sense | D．point |
. These plastic flowers look so _____ that many people think they are real.
| A．beautiful | B．natural | C．true | D．similar |
When I took his temperature, it was two degrees above _____.
| A．average | B．ordinary | C．regular | D．normal |