They are just college graduates and don’t realize what ______ takes to start and run a company.
| A．this | B．he | C．that | D．it |
—Well, I do think the ipad is smart, convenient and intelligent.
—________.
| A．So it is | B．So is it | C．So does it | D．So it does |
You have to believe in yourself. Self-confidence is _____ to success.
| A．essential | B．combined | C．similar | D．compared |
His spare time is made full use_______ law.
| A．to study | B．study | C．of studying | D．of to study |
Mark needs to learn Chinese _______ his company is opening a branch in Beijing.
| A．unless | B．until | C．although | D．since |
sales of cars up by 30% last year, the traffic in Beijing has become increasingly terrible.
| A．With | B．Since | C．For | D．As |