No one expected house prices to fall, but _____ that's exactly what happened.

Apple’s iPad2 uses a 9.7-inch touch screen like the iPad. ______, it is equipped with a pair of new cameras, which the iPad doesn’t have.

Mr. Lin’s comments were very difficult to follow because they were ______related to the topic under discussion.

You must keep it _______ in mind that education is the first productivity. 

33. The employees have not been paid _______ since the new manager took over this company last month.