15.It is cheap and reliable. the word It refers to... a.sending email b.making a phone call c.sending letters d.traveling by bus 16. he may come early a.permiss

15."It is cheap and reliable".
the word "It" refers to...
a.sending email
b.making a phone call
c.sending letters
d.traveling by bus
16. he may come early
a.permission c.possibility
b.suggestion d.wish

17.she...be late since her flight has been delayed.
a.may c.might
b.would d.will
tolong bantuannya dong