After trying hard, they _______ the hope of finding an effective way to solve the problem.
| A．abandoned | B．released | C．discouraged | D．resigned |
____ the chance, otherwise you’ll regret it.
| A．Arrest | B．Seize | C．Catch | D．Hold |
People who can’t ____between colours are said to be colour -blind.
| A．recognize | B．separate | C．distinguish | D．identity |
Would it be____ for you to pick me up at four o’clock and take me to the airport?
| A．free | B．vacant | C．handy | D．convenient |
After the successful launching of the Shenzhou 9, ______ the astronauts will work and live in Tiangong-1— the space lab module is ______ the whole nation care about.
| A．where, what | B．what, that | C．that, how | D．how, what |
The manager found that his office ______ the day before.
| A．had broken in | B．has been broken into |
| C．had been broken into | D．has been broken in |