Помогите с тестом пожалуйста

  • I. Выберите правильный ответ, обращая внимание на особенности модальных глаголов и их эквивалентов. Переведите предложения на русский язык:

    1.1. User … install a specific driver in order to activate a peripherical device.
    a) are able to
    b) has to
    c) shall have to

    1.2. Engineers … know how materials respond to external forces, such as tension and compression.
    a) is to
    b) may
    c) must

    1.3. The designers … work out a special line for their shop two years ago.
    a) may
    b) had to
    c) was to

    1.4. One … always inspect the machine tool before he turns it on.
    a) have to
    b) are able to
    c) should

    1.5. Automatic machines … to replace the old equipment of our shop.
    a) are to
    b) has to
    c) ought to

    1.6. In scientific work we … measure in units of the metric system.
    a) ought to
    b) must
    c) has to

    1.7. You … replace the tool by another one, why didn’t you do it?
    a) were to
    b) have to
    c) are able to

    P.S заранее спасибо
    p.s перевод не нужен

  • 1.1. User … install a specific driver in order to activate a peripherical device.

    b) has to

    1.2. Engineers … know how materials respond to external forces, such as tension and compression.

    c) must

    1.3. The designers … work out a special line for their shop two years ago.

    b) had to

    1.4. One … always inspect the machine tool before he turns it on.
    \
    c) should

    1.5. Automatic machines … to replace the old equipment of our shop.
    a) are to

    1.6. In scientific work we … measure in units of the metric system.

    b) must

    1.7. You … replace the tool by another one, why didn’t you do it?
    a) were to

  • Огромное спасибо,выручили.