[ Vocabulary and Grammar ]
In July of 1975, the first US-Soviet joint ……… occurred with the Apollo-Soyuz project.
A. mission
B. performance
C. company
D. relation
Select your answer:

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Grammar › View“I always wanted to go __________ but I could never get the time off.” Jack sighed.
A. Their
B. There
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The ___________ of dark red spots is one of the first sign of the disease.
A. Appearance
B. Appearing
C. Appear
