I will never forget the old days ___________ I spent with my grandmother in the village.

How do you spell ruler —_______.

Hi, Johnson, any idea where Susan is? —It’s class time, so she in the classroom now.

The earthquake in Japan, measuring 90 on the Richter Scale, was so violent cause a series of explosions of the nuclear reactors in several power stations

This computer doesn’t work properly, because the operating system has.