______that blood diseases are going to continue, we’ll have to______ them. 
#93223
A
Assumed; doing research at
B
Assuming; do research on
C
Assuming; do research for
D
Being assumed; do research on
推荐题目
We are invited to a party______ in our club next Friday. 
#93581
A
to be held
B
held
C
being held
D
holding
_____ his electronic dictionary made himself sad.   
#89974
A
Losing
B
Lost
C
Being lost
D
To be lost
  If he had helped you, he would have risked ________his job.
#88322
A
to lose
B
losing
C
to be lost
D
being lost