John is no less hardworking than his sister, _______ he failed in the exam.
| A．but | B．thus | C．or | D．and |
Look at the timetable. The flight to Shanghai _____ off at 10:00.
| A．is taking | B．takes | C．will be taken | D．will take |
--- I ____ so busily recently that I ____ no time to help you with your maths.
---That’s OK. I can manage it by myself.
| A．had been working; had had | B．have been working; had |
| C．have been working; have | D．am working; will have |
I felt _____ to see her _____ face.
| A．disappointing; disappointed | B．disappointed; disappointing |
| C．disappointed; disappointing | D．disappointed; disappointed |
There is ____ Mr. Smith at the door who wants to speak to you.
| A．a some | B．certain | C．some a | D．a certain |
At a rough estimate, Nigeria is ____ Great Britain.
| A．twice big as | B．as twice big as | C．three times the size as | D．three times the size of |