Whatever he does, once he set up a goal, he would start pursuing it without _________.
You should be .You mustn't take any unnecessary risks until you are quite sure.
He said that not until the heavy snow blocked the express _________ how serious the weather was.
---What’s wrong with him? ----The picture he came across___his memory of a sad story in his childhood.
—What do you think about the new teacher?—________ the new teacher is an elegant lady, she can be extremely difficult to work with.
Nowadays, many people walk to work ________ Copenhagen Conference calling for living a low-carbon lifestyle to deal with global warming.