Niagara Falls is a great tourist _______,drawing millions of visitors every day.
| A．attention | B．attraction |
| C．appointment | D．arrangement |
We should be able to do the job for you quickly, ____________ you give us all the necessary information.
| A． in case | B．so long as | C．if only | D．so far as |
Jack could have avoided that terrible car accident, but he ________ careful enough.
| A．is not | B．hasn’t been | C．was not | D．hadn’t been |
The climate change conference has come to __________ end, but the developing countries are dissatisfied with __________ small step that the developed countries have taken to reduce the emission(排放) of water gases.
| A．不填， a | B．不填， the | C．an , a | D．an, the |
--Don’t smoke any more, Ralph ! It is very bad for your health !
--I know I should give up smoking, but ________.
| A．easier said than done | B．nothing is easier than fault-finding |
| C．easy come, easy go | D．easy does it |
He glances briefly towards her but there is no sign of ________. After all, it’s 15 years since they last met.
| A．symptom | B．recognition | C．reputation | D．influence |