According to our school rules, students ________ not carry mobile phones when taking a exam. 

— My  clothes are out of  style.-—Maybe  you  should  ______ some new clothes.

一What will the weather be like tomorrow?一It     be rainy ,cloudy or sunny．Who knows? Even the weather report is not always right.

– Could I use your mobile phone? I have to call my mom for the coming class meeting. --Yes, of course you _____________.

—Will you stay for some more days? —Sorry, I_____. My mother called to ask me to go back at once.