Подготовка к ЦТ. Tenses.

 Выберите подходящую форму глагола для каждого пропуска

In 1969, the first humans (1) ______ on the Moon. Since then, space exploration (2) ______ significantly. Currently, scientists (3) ______ on a mission to Mars. They believe that by the year 2040, the first colony (4) ______ there. However, many experts warn that if we (5) ______ to protect our own planet now, no other planet will save us in the future.

Подготовка к ЦТ. Tenses.

 Choose the correct variant

1. It is the third time he ________ his keys this month.
   • a) lost
   • b) is losing
   • c) has lost
   • d) had lost
2. Sarah was exhausted because she ________ for the exam all night.