People are living in ___ world where mouse clicks rule our life, so online searches have become _____ must.
| A．the; / | B．/; a | C．a; a | D．a; the |
When he knew the disappointing result of the exam, he seemed quite _______.
| A．fed up | B．cast down | C．in vain | D．in amazement |
. If the weather had been better, we could have had a picnic. But it ________ all day.
| A．rained | B．has rained |
| C．rains | D．is raining |
---Jane, you’ve made such great efforts that you are ________ to pass the exam.
---It is very kind of you to say so, Mr. Smith.
| A．easy | B．bound | C．possible | D．convenient |
By the year 1889, there were just 541 bison ________ in the whole of North America.
| A．leaving alive | B．to leave alive |
| C．to be left alive | D．left alive |
The number 911 is a special number, ________, I think, that will be remembered by the Americans forever.
| A．what | B．it | C．which | D．one |