Look at this year’s sales figures ________ last year’s; they’re so much better

The Nile River ____ flood large areas but now the water ____ produce electricity. [ ]

Later, these rocks proved that ___ in the distant past the Antarctic was covered by plants

Changing the design of a new product may ______ therisk of its production in the market.

I completely agree to your advice that children ______ with respect and encouragement. [ ]