1)Составьте отрицательные предложения.
She is a master.
2) Укажите this или these:
tape, shop, brakemen.
3) Напишите множественное число:
this effect, that master.
4) Укажите this (these) в вопросе, is (are) в ответе.
Is ___ an engine? Yes, it an engine.
5) Укажите have/has:
Ballast various materials. Trains cars.
6) Укажите is/are:
7) Metro the speediest.
Укажите do/does/am/are/is:
railways maintain the road bed?
8) Укажите doesn't, don't, aren't, isn't, am not:
The speed of electric locomotive increase.
9) Задайте вопросы к предложениям:
Train automatically identifies itself.