---Can I pass the exam this time,Mr.Li?---I don’t think you can________ you work hard.
. Please let me know how ________ you can be ready.
. You and I could hardly understand what he said, ________ ?
. ________ the case is settled out of court, it can often take years before it comes to trial.
. Put on your rain()coat ________ it rains.
.________ gas leaks and similar accidents should occur, some responsible persons should regularly inspect all the laboratories.