Заполните пропуски. Ward Sister Sarah Brown is responsible for the welfare of 28 patients on two wards at London hospital where she (A1) … for the last 6 years. She (A2) … a staff of 12 people. There are also 15 students nurses who (A3) … to the ward at any time. It (A4) …, she says, that 200 people – doctors, nurses, students, visitors – (A5) … through her wards every day. Sister Brown, who is 39, (A6) … as a nurse 20 years ago. A1. 1) worked; 2) was working; 3) had worked; 4) has been working. A2. 1) directs; 2) is directed; 3) has directed; 4) has been directing. A3. 1) assigned; 2) have been assigned; 3) have assigned; 4) are assigned. A4. 1) has been calculated; 2) is calculate; 3) had been calculated; 4) calculates. A5. 1) have moved; 2) is moving; 3) are moving; 4) moved. A6. 1) were qualified; 2) was qualified; 3) qualify; 4) has been qualified.