One and a half hour（）since we arrive. No one has come to meet us.

According to the passage, what helps to explain why the population problem has come on "all of a sudden"?

We are pleased to know that you have planned to come to the Autumn Guangzhou Fair.We wish to discuss with you some other important things if you could come（）your earliest convenience.

（）difficulties we may come across, we'll help each other to overcome them.

（） your decision to place regular orders with us, we request that you furnish us with two references for the initial purchase.

We are at your service. Don’t to turn to us if you have any further problems.

We all（）your coming to help us.

Can we ______ another worker to help Jimmy or find another solution?

We are confident that we will get rid of those difficulties since the government has agreed to give us some help.

Hey, Nick. ______ comes the last bus! Hurry up, or we’ll have to walk home.

—How long does it take us to go to your hometown from here?—It takes us ______ hour or more to go to my hometown by ______ train.

“HELP US TO HELP YOU” means ______.