We arrived late. Most of our friends had left. = Most of our friends had left...
by the time we arrived.
He said goodbye to his children. Then he left. = He said goodbye to his children...
before he left.
We went on walking ………… the sun had set.
by
until
I was looking for my keys. _____ my sister had found them and she was looking for me.
By the time
Meanwhile
As soon as
Many important discoveries were made _____ the 18th century.
by the time
while
during
You can’t legally drive a car ………… you’re 16.
by
until
Finish your homework. Then you can go out. = You can go out...
when you finish (have finished) your homework.
We started to eat. The telephone rang immediately. = The telephone rang...
as soon as we started to eat.
I didn’t have my keys, so I couldn’t get in ……… Peter arrived.
until
by
4. Mike and Linda met _____ they were both working at Unilever.
meanwhile
during
while
I left school. Then I came to work in this bank. = I’ve worked in this bank
since I left school.
Finish your homework. Then you can go out. = You cannot go out...
until you finish your homework.
We walked around Central Park ____ it was dark, then we went back to our hotel.
by the time
by
until
We spent hours driving there, but _____ we arrived, the concert was nearly finished.
by the time
by
until
If we don’t pay all the money we owe to the electricity company ……… the end of this month, our power supply will be cut off.
by
until
Tom needs his bike next weekend, so I’ll give it back to him ……… Friday.
until
by
I found some old magazines _____ I was tidying my old room recently.
during
meanwhile
while