If the boss is angry when he comes in， don't tell him about the customer's complaints． You'll just be _________．
A. killing the fatted calf
B. seeing the handwriting on the wall
C. hitting your own feet of clay
D. adding fuel to the fire
Forty years after China started its reform and opening﹣up， more than 18million rural residents have _________ poverty in South China's Guangxi Zhuang Autonomous Region．
A. shaken off B. taken off
C. paid off D. kicked off
﹣﹣﹣The president will come to attend your lecture at 10：00 tomorrow．
﹣﹣﹣I'm sorry， by then my lecture will have just ended and I _________ my fans in my office．
A. have met B. will have met
C. will meet D. will be meeting
Though scientists get closer to understanding why we age， the reason for different aging rates among individuals remains only __________ understood．
A. concretely B. thoroughly
C. vaguely D. flexible
The study， from academics at Harvard， claims __________ the first clear evidence showing that when temperatures go up， school performance goes down．
A. to have produced B. to produce
C. producing D. being produced
Using AI， many companies are now conducting experiments that__________ possible just a few years ago．
A. would have been B. might have been
C. shouldn't have been D. couldn't have been
