It is difficult for you to ______ what will happen in space without gravity.
| A．depend on | B．have some idea of | C．keep from | D．equip with |
相关试题
The children ___ not to play football in the street.
| A．warn | B．warned | C．must warn | D．are warned |
I bought a dress for you only 10 dollars in a sale; it was a real _____.
| A．exchange | B．bargain | C．trade | D．business |
The Olympic _____ remind us of where the Olympics are held and the characteristics of the host country.
| A．symbols | B．signals | C．marks | D．signs |
He came here without friends or ______and made his fortune.
| A．possessions | B．possession | C．wealth | D．good |
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