______, they would certainly come and help us.
| A．Had they time | B．Do they have time | C．Had they have time | D．Did they had time |
The chairman thought _____ necessary to invite Professor Smith to speak at the meeting.
| A．that | B．it | C．this | D．him |
Eating too much fat can______ heart disease and cause high blood pressure.
| A．result from | B．contribute to | C．attend to | D．lead in |
Her __________ feeling about him made him ____________.
| A．confused ; confusing | B．confusing ; confused |
| C．confused; confused | D．confusing; confusing |
Some people get in touch with each other by mobile phones__________ others keep contact with each other by e-mail.
A. while B. before C .when C. since
________ surprised the hostess most is _________ one of her friends left the party without saying a word.
| A．What, that | B．What, what | C．That, that | D．That, what |