Many countries are now setting up national parks________animals and plants can be protected.
—It’s burning hot today, isn’t it? —Yes. __________ yesterday.
So difficult __________ it to work out the problem that I decided to ask Tom for advice.
__________ homework did we have to do that we had no time to take a rest.
—Did Linda see the traffic accident? —No, no sooner __________ than it happened.
Fred is second to none in maths in our class, but believe it or not, he _______ passed the last exam.