In "…airport tower controllers (or terminal controllers) watch over all planes traveling through the airport's airspace," (lines 10 - 12 ), "watch over" means:

The only word(s) that could NOT replace "nears" in "As the plane nears the runway" (line 30) is(are):

Mark the only option in which the word(s) in bold type express(es) an idea of hypothesis/condition.

In "It helps a pilot that is in a very stressful situation to have a calm voice on the other end of the radio." (lines 9-10), "have" could be replaced by:

READ TEXT I AND ANSWER QUESTIONS 16 TO 20:

next in "its next big energy bet" indicates:

READ TEXT II AND ANSWER QUESTIONS 21 TO 30:

The underlined word in "children gather to paint and draw" (l.1) can be replaced by:

READ TEXT II AND ANSWER QUESTIONS 21 TO 30:

main in "the main downtown shopping street" (l.2) means:

READ TEXT II AND ANSWER QUESTIONS 21 TO 30:

"a key victory" (l.4) means that the victory is:

READ TEXT II AND ANSWER QUESTIONS 21 TO 30:

When we say that a war is "ongoing" (l.4), we mean it is:

In line 17"his clothes are neither new nor in the fashion" means: