Question

未設定

ここのpresentの文法を教えてください。

A lot of ar travelers complain about the taste of
airline meals. One of the major reasons for this is
that our taste and smell do not work as well in an
aircraft cabin at high altitudes as on the ground
because of the high pressure. In addition, dryness
inside the cabin also affects the way we sense the
flavors of food. Background norse is another
important factor. Long exposure to loud noises, like
that of a jet engine, dulls sweet flavors while it
intensifies the savory taste present in some food like
tomatoes, seaweed and mushrooms.