（） must be done to solve this problem.

The goods are urgently needed. We （） hope you will deliver them immediately.

Checking accounts differ （） saving accounts.

The （） will have a rotating honorary chairman.

用所給的詞和詞組寫出符合邏輯的句子。we will/supply/be unable to/the goods/we receive/payment/unless/in advance

In addition to setting the price of a product, business firms must decide （） to offer special discount and credit terms to their customers.

We are anxious to contact some Indian companies with a view （） business relations with them.

I have received （） professional training.

A committee of four men and five women （） to be appointed in this week’s meeting.

After inspection of the above shipment, they found 6 cases （）.