1.   Apparently, the poor guy kept wandering down connecting tunnels as Rojas chased after him on the surface.

2.   As construction goes on outside, the astronauts inside Endeavour will be busy making preparations to enter the new station through a connecting tunnel and docking system.

3.   As construction goes on outside, the astronauts inside Endeavour will be making preparations to enter the new station through a connecting tunnel and docking system.

4.   The Tora Bora stronghold, for example, contains several natural caves with no connecting tunnels.

5.   The two crews -- six Americans and four Russians -- spent the five days moving between the two spacecraft in a short connecting tunnel.