The little boy who got lost decided to remain ________ she was and wait for her mother.
| A．what | B．how | C．who | D．where |
Studying alone, you are free to choose what to learn and when, ________ you don’t need others’ agreement.
| A．while | B．if | C．though | D．as |
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 |
We do not know how astronauts can ________ when they spend months in space without the protection of the atmosphere.
| A．get off | B．get up | C．get along | D．get in |
—Can we get the computer before Wednesday?
—_______. If it is within 30 kilometers, we can make it, but if further away, it will be on Thursday.
| A．I don’t know for sure | B．Well, that all depends |
| C．It’s up to you, sir | D．There’s no rush |
Mrs. Hanson, a housewife bent on getting ________ higher education, has been going to college, a few courses at ________ time, for 7 years.
| A．a; a | B．不填; the | C．the；a | D．不填；不填 |