【单选题】Britain's bosses would have you believe that business in Britain is groaning under red tape and punitive tax levels, inhibiting enterprise and putting British firms at a disadvantage compared with ove...
【单选题】In the month of September, in Britain, you may see large numbers of birds【C1】______ on roofs and telegraph wires. These birds are swallows. They are【C2】______. together because, very soon, they will b...