Heworkedhardandachievedwhathes-优题课

He worked hard and achieved what he set out to do, but ________ what he had owned, including his health and his marriage.

A．at the mercy of	B．at the risk of
C．at the cost of	D．at the service of

科目英语题型单选题难度中等

Having paid off all their ____, the Smiths are now ____ financial problems.

—How much of the foreign expert’s speech have you understood?
—Next to nothing. I wish I _______ harder at English.

The Expo site should be _______ from anywhere in the city of Shanghai within 90 minutes by bus, subways and special taxis.

--- Where did you meet him for the first time?
--- Maybe it is in the museum ______ we listened to the lecture ______ we got to know each other.

We work together to achieve our common purpose： ______ world that is safer, cleaner and healthier than______ one we found．