It is important to have your eyes examined regularly to check for any sign of eye disease that may not have any ________.

To save class time，our teacher has ________ students do half the exercise in class and complete the other half for our homework.

 — They have discussed the problem for hours. — Have they come to any_____?

The lack of money forced them to________their research.

You don’t know ______ I want to see you again. It’s a year since I last saw you.