.
I wonder ______ you were doing last night.
| A．it was what that | B．what was it that | C．that what it was | D．what it was that |
The Group of Eight (G8)________the eight richest countries in the world.
| A．is consisted of | B．is made up | C．consists of | D．made up of |
It is obvious to the students ______ they should get well prepared for their future.
| A．as | B．which | C．whether | D．that |
I earn 50 dollars a week, _______ she earns 80 dollars.
| A．as | B．when | C．while | D．since |
— Mike, what did our monitor say just now?
—Every student as well as teachers who are to visit the museum _____ asked to be at the school gate before 6:30 in the morning.
| A．am | B．are | C．were | D．is |
Studies show that people are more _____ to suffer from back problems if they always sit before computer screens for long hours.
| A．likely | B．possible | C．probable | D．sure |