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Vsuresh Posted 14 years ago
Grammar
present perect/past
Hi Please tell me which more preferable here.
Until recently scientists ......(focussed/have focussed) on improving crop yields and in a relatively short period of time have given us, higher yields.
Until recently scientists ......(focussed/have focussed) on improving crop yields and in a relatively short period of time have given us, higher yields.
Top answer
Until recently scientists focussed / had focussed / were focussing / had been focussing on improving crop yields and in a relatively short period of time gave us higher yields. )
- Until recently scientists focussed / had focussed / were focussing / had been focussing on improving crop yields and in a relatively short period of time gave us higher yields.
- )
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2 Answers
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Until recently scientists focussed / had focussed / were focussing / had been focussing on improving crop yields and in a relatively short period of time gave us higher yields.
(Extra hint: 'more preferable' is redundant; 'preferable' is sufficient.)
(Extra hint: 'more preferable' is redundant; 'preferable' is sufficient.)
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