----To build a factory is beneficial to the locals, but on the other hand, it will be not environmentally friendly. ---- That’s_____ environmental protection organizations disagree.
Lincoln died ____ the morning ___ April 15, 1865.
I haven't seen her ____ the past few years.
What have you done ____ my picture-book?
.---Do you like working as a waiter? -----Yes, but I get tired ___ the whole day.
I saw a man standing ___ the tree ___ a distance of twenty yards.