It was a real race __________ time to get the project completed in such a short time.

 Some youngsters know what to _______ at the university; they have made up their minds about future.

It is said that the weather will ______ hot for another three or four days.

 I just choose a simpler lifestyle，________ where I can ride my bike all over and do not have to make a great living to survive.

 When the students _____ the teacher about their problems, he was ready to give a helping hand.