When the winter _____ , all the construction works in northern China have to be stopped .

oblem lies __________ we are nowgiving him a fish, not teaching him to fish

Jack is interested in robots, so he went to the restaurant in Liaocheng ___________ he heard that there were robots working as waiters there.

Don’t worry. There is ________ time left.

Last year, Mary help from a number of people, including doctors, teachers and soldiers and finally she made it with the help of them.