How long do you think it will be ________ the computer company puts forward a new product?

You can depend on _______ that the school will ______ immediately to the students’ request that they should have more time to relax.

What the doctor really doubts is ______ my mother willrecover from the serious disease soon.

Mrs.Brown is supposed _________ for Italy last week

they are twins, they don’t look the same at all.