So far we have done a lot to build a low-carbon economy, but it is__ idealWe have to work still harder.[ ]

These articles are written in simplelanguage, _____ makes it easy to read.

Jerry didn’t regret giving the opinion but felt _____ he could have expressed it differently.

By working slowly but surely towards your goal, you’ll _____ succeed

Does he _______a small nose—No, he doesn’t. He______ a big nose.