He (1. work) .had worked. on a ship during World War II before he (2. go) .went. back to university.
He (1. work) .had worked. on a ship during World War II before he (2. go) .went. back to university.
When the guard (inspect) ... the bag, he (hand) ... it back to Mark.
He has to experience ... before becoming a professional astronaut.
A. astronomy B. astronomical C. astronomer D. astronaut
He has to experience ... before becoming a professional astronaut.
A. microgravity B. microgravitation C. macrogravity D. macrogravitation
They (collect) ... more than 100 pounds of moon rocks and done science experiments on the lunar surface before they (come) ... back to the Earth.
He's still ... dependent on his parents, he regularly receives money to live from them.
A. finance B. financial C. financially D. financier
Often a team of engineers is ...
A. work on one project B. on one project work C. working on one project D. to work on one project
He (fly) ... on a Mercury spacecraft which (have) ... just enough room for one person.
When the man (fall) ... from the window, he (land) ... on the roof of a car.
..., I go to the cinema, only when there's a film I really, really want to see.
A. Over the moon B. Once in a blue moon C. The sky's the limit D. Out of this world