Grammar
Vocabulary
100
  1. When she                      home at 4 o’clock, her children                      computer games.

When she arrived home at 4 o’clock, her children were playing computer games.

100
  1. There is so much      on the road today.

There is so much traffic on the road today.

200
  1. I                      the lesson difficult, so I                       the teacher for help.
  1. I have found the lesson difficult, so I asked the teacher for help.
200
  1. When you get to the     , take the first exit.
  1. When you get to the railway station, take the first exit.
300
  1. They                      at the time so they                       the bus.
  1. They have left at the time so they missed the bus.
300
  1. Their train is      so they will be late.
  1. Their train is delaying so they will be late.
400
  1. Dad                      the train to work because it

                       and he didn’t want to get wet.

  1. Dad missed the train to work because it

   was raining and he didn’t want to get wet.

400
  1. I was waiting for the bus at the     , but it didn’t arrive.
  1. I was waiting for the bus at the bus stop, but it didn’t arrive.
500
  1. What                      you                      at 8 pm last night when I                      the house?
  1. What were you doing at 8 pm last night when I                      had left the house?
500
  1. If the      are green, then you can go.
  1. If the traffic lights are green, then you can go.