C22U4LA GE1

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(2)

Parties jouées 9

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Complete the time expressions with by or within. Use the future prefect for the verbs in parenthesis.

Modern English

Mexico

#	Jeux	Précision	temps
1	Beto Castillo 7 Mai 2020	% 100	01:17
2	Angélica 4 Août 2020	% 100	02:22

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Compléter C22U4LA GE1Version en ligne Complete the time expressions with by or within. Use the future prefect for the verbs in parenthesis. par Modern English 1 the time our children reach adulthood , hundreds of species ( disappear ) off the planet . One study estimated that 2050 , 37 percent of terrestrial species ( die out ) or will be in danger of extinction . That is well over the next 30 years . Sea life is also in danger . the time that sea levels rise 50 centimeters ( about 20 inches ) , one - third of nesting beaches in the Caribbean ( lose ) , leading to the decline in turtle populations . By the end of this century , it is believed that seawater temperatures ( rise ) enough to affect the food supply of some oceans species . This impacts various species in different ways . For example , it is believed that only a few decades , the reproductive cycle of the sperm whale ( affect ) , which threatens the very survival of the whale itself .