—How much of the foreign expert’s speech have you understood?
—Next to nothing. I wish I _______ harder at English.
| A．worked | B．had worked | C．would work | D．were working |
It's required that mineral resources _______hand in hand with the local environment protection.
| A．be exploited |
| B．exploit |
| C．have exploited |
| D．exploited |
The faces of four famous American presidents on Mount Rushmore can be seen from a ________of 60 miles.
| A．length |
| B．distance |
| C．way |
| D．space |
It is reported that a man ________off an old lady in the street yesterday.
| A．ripped |
| B．robbed |
| C．stole |
| D．put |
I'll trade you my stamp collection _______your model boat.
| A．with |
| B．for |
| C．to |
| D．into |
Their faces ______after the long-term misunderstandings were________.
| A．cleared up；cleared up |
| B．cleared off；cleared off |
| C．cleared out；cleared out |
| D．cleared away；cleared away |