[ 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

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Suffixes (ing-ed) SentencesConditional Sentence Type 1Linking VerbDegrees of ComparisonConditional Type 1Synonym and AntonymConditional Typeswill, be going to, would like toInterrogative PronounsAdverb of Frequency and Past Continuous TenseOther quiz:
Vocabulary › View Describe the picture below.
A. Boisterous
B. Blight
C. Bravado
D. Rash
Grammar › View
. If I __________ you yesterday, we would have discussed it.
A. see
B. had seen
C. saw
D. seeing
E. seen