In the following questions, you have several passages where some of the words have been left out. Read the passages carefully and choose the correct answer to each blank out of the four alternatives.
Without water (38) animal can survive. In desert regions the greatest (39) to life is drying up. But many creatures are able to make use of (40) little water that exists in arid areas. One of nature’s masterpieces (41) creatures equipped to (42) with desert life is the hardy camel. Stories range the desert lands far and wide about (43) endurance feats by camels. It is said that camels can (44) a distance of about 800 miles in eight days through (45) travel without an intake of a signal drop of water. The popular (46) that camels store water in the humps is (47) in a way; water is indeed stored there but in the form of fat.

• remarkable

• little

• tolerable

• tolerable