e limited supply of water has beenput into practice, take care to turn off the running ____ before you leave

More than fivedoctors and rescuers have got to Yushu County up to now．

The teacher explained a second time, the students should have difficulty in doing the experiment

Don’t you think Jim was brave to go bungee jumping?— Personally, I thought he was ________ brave[ ]

How do you keep in touch with your friends— We ____________ write to each other, but we _________ chatting on QQ now.