It is the first time that Martin has been to the South Pole, ________?
| A．isn’t he | B．hasn’t he | C．isn’t it | D．hasn’t it |
Polar bears liveon sea ice, which they use as a platform for hunting seals.
| A．most | B．almost | C．nearly | D．mostly |
The washing machine is environmentally friendly because it uses ___ water and electricity than ___ models.
| A．less…older | B．less…elder | C．fewer…older | D．fewer…elder |
—Was it two months ago__ you luckily got an opportunity to spend your holidays in Spain?
—______. John was the lucky dog.
| A．that, Not I | B．when, Not really | C．that, Not me | D．that, Yes |
In ______________, fashions changed and many factories closed down.
| A．1830’s | B．1830s | C．the 1830s | D．the 1830s’ |
They ______ a small laboratory and devoted every spare moment to this work.
| A．picked up | B．put up | C．set up | D．grew up |