This is an illness that can result in total blindness ____left untreated. A after B if C since D unless
The father stood up in order to protect his 15-year-old son, saying that he was not the one .
Only one third of the people present at the meeting voted the new law.
Standing on the platform, Professor Li kept silent for a moment, on the audience below.
The school should ________ immediately to the students’ request that they should have more time to relax.
I believe ________ you have tried your best and ________ you can come to the top of the class.