___________ to carry out the plan in time, they will make careful prepatations.
Why does your brother _______ a sad look on his face these days?
I know you want to borrow money but I have _____at hand myself.
–Where can we park ___ car? –Don’t worry. There’s sure to be ____ parking lot nearby.
— If we go on polluting the world, it won’t be fit for us to live in.— ____. We’ve got to do something about pollution.
AIDS is said_______ the biggest health challenge to both men and women in the earth over the past four years.