Question

Present perfect with for and since

Complete the sentences with for or since.
1 There have been permanent research stations on the
continent of Antarctica ____
1904.
2 The Argentinians have had an Antarctic station
........about fifty years longer than the
Americans and the Russians......... the early part of last century, thirty
countries have built an Antarctic station, including
India and South Korea.
4 People live at some of these stations all year round.
Antarctica has had a permanent population of about
1,000 people.......................... the last five years.
5 Scientific researchers have lived at the Amundsen-
Scott Station at the South Pole ................ the
Americans built it over fifty years ago.
6 McMurdo Station is Antarctica's biggest station. It
has been in operation ... ......... governments
signed the Antarctic Treaty in the 1950s.​

Answer 1

Resposta:

1- Since

2- For

2- Since

4- For

5- Since

6- Since