【题目】The policeman’s traffic directions made all the drivers quite .

【题目】It is the bus driver who should ______ the safety of the passengers.

【题目】These diagrams are especially helpful when we have a concrete problem ______ at hand.

【题目】They are determined to go into the dark cave, ________ my warning of danger.

【题目】 19th CPC National Congress which is major event in the country was held on Oct. 18, 2017.

【题目】I ______ for Shanghai this Saturday, so I want to know when the earliest plane ______.

【题目】All we have is 24 precious hours a day and therefore we shall waste ______

【题目】（题文）(2015·陕西) ____________ the delayed flight will take off depends much on the weather.

【题目】We are so tired. ______ we could take the day off tomorrow!

【题目】He looked calm, but a, he was very nervous.