In time of war，different parties tend to________their political differences to fight against foreign invaders shoulder to shoulder.

_____ it rain tomorrow, we would have to _______ thepicnic.

t really want to make theappointment, I suppose I ____.

The recent study has shown that people’s attitudes towards protecting the environment are notwith their behavior in daily life.

______, he makes little progress. So he is trying new methods of study. Which of the following is WRONG?[ ]