______ the students found the soldier’s idea interesting, the system was too difficult to be of practical use.
| A．While | B．Unless | C．As soon as | D．Even if |
European football is played in 80 countries, _________it the most popular sport in the world.
| A．making | B．makes | C．made | D．to make |
___________his work, he went back to work after supper.
| A．Having not finished | B．Not having finished | C．Not finished | D．Finishing not |
When I got back home I saw a message pinned to the door_____“Sorry to miss you, will call later.”
| A．read | B．reads | C．to read | D．reading |
The reading room is_______the classroom.
| A．two times as big as | B．twice bigger as | C．twice as big than | D．twice as big as |
Rather than________on a crowded bus, he always prefers___________a bicycle.
| A．ride, ride | B．riding, to ride | C．ride, to ride | D．to ride, riding |