He made a great __________ to the success of the project.
A．contribution B．progress
C．distinction D．conclusion
A student in our school will be immediately sent home if he is found __________ computer games at night.
A．play B．playing C．to play D．played
This time next week I __________ to Guangzhou to attend a meeting with my manager.
A．will fly B．am fly
C．shall be flying D．fly
The doctor will not permit mother up __________ her leg is better.
A．if B．until C．when D．unless
Either his wife or his friends __________ his birthday party.
A．has attended B．have attended
C．attends D．is attending
No one knows __________ it will be fine tomorrow and __________ we can play basketball together.
A．whether; whether B．that; whether
C．whether; that D．that; that
