Подчеркните сказуемые и укажите их видовременные формы в скобках.

Подчеркните сказуемые и укажите их видовременные формы в скобках.

1.   According to schedule, this train was due to arrive at 12.30, but because of

track repair work, it is being delayed.

2.   The passengers had been invited to get on the train and now they were

exchanging farewells with those who had come to see them off.

3.   China is planning to construct several thousand kilometers of high-speed

lines for the transportation of 1.5 billion passengers and 2.1 billion tones of freight a year.

4.   Specific plans have been drawn up to upgrade the busiest main lines for

semi-express train running at 160 km/h or express trains moving at 250 km/h.

5.   At the same time, the possibility of the train speed increases up to 350km/h

is being investigated.