hanging lanes, a driver should use his turningsignal to let other drivers know.

There is no doubt ________ those who work hard will succeed sooner or later

Could I borrow your camera(照相机)—______, but please give it back by Saturday.

Was it under the tree ______ you went away talking toa friend—Sure. But when I got back there, the bike was gone.

I definitely appreciate ____ when I can walk away from my computer after a long day of typing and have pain-free arms!