He accepts the idea ______ successful people spend a lot more time reading than watching TV, and he has decided to read for an hour every day from now on.

Ms Lin looks rather a kind lady. —But in fact she is cold and hard on us. You ____believe it!

There are more than students in their school.

It was not until he came back _____ he knewthe police were looking for him.

It has been proved ____ several new kinds of medicine____ a positive effect on the cure of H7N9.