Question

complete the text with the present perfect or the past simple

Global warming (1be) ______ a problem for yerars . Enviromentalists (2start) ____ to worry about it decades ago. but climate change (3 only become) _____ a big talking point since 1997 in 1997 the kyoto climate conference (4 take place)_______ in kyoto, japan. At the conference many coutries (5 decide) _____ to reduce the carbon dioxide they produce. The kyoto protocol officially (6become) _____ law in february 2005. countries such as russia, china, japam and canada and most european countries ( 7 jus/ start ) _______ to reduce their carbon dioxide. however the usa ( 8 not agree) ______ to the protocol.

Answer 1

Respuesta:

Was

started

only became

taked place

Decided

Became

just started

doesn't agreed