Some experts are warning that the step the US government has taken to deal with the current crisis is ______ of much risk.
| A．ones | B．one | C．that | D．those |
To know more about the British Museum, you can use the Internet to go to the library, or _______.
| A．neither | B．some | C．all | D．both |
_____ their hats into the air, the fans of the winning team let out loud shouts of victory.
| A．To throw | B．Thrown | C．Throwing | D．Being thrown |
-- I just can't stop worrying about the result of the job interview.
--. There's nothing you can do now but wait.
| A． | Relax | B． | Go ahead | C． | Go for it | D． | Good luck |
My brother is really. He often works in his office far into the night.
| A． | open-minded | B． | hard-working | C． | self-confident | D． | warm-hearted |
We'll have a picnic in the park this Sundayit rains or it's very cold.
| A． | since | B． | if | C． | unless | D． | until |