Global warming Period 6 Summing Up，Learning Tip and Assessment
a.whether b.if
c.that d.which
8.the ______ parents were all ______for the children's safety.
a.concerned；concerned
b.concerned；concerning
c.concerning；concerning
d.concerning；concerned
9.the students ages ______ 15 to 18.
a.range b.ranged
c.range from d.ranges from
10.______，we'll go camping.
a.weather permits b.if weather will permit
c.weather permitting d.weather permitted
11.______，we would have not finished the work on time.
a.if you didn't help us b.without your help
c.without you d.with your help
12.—i will not come here tomorrow.
—______to me，because i don't care.
a.it doesn't make any difference
b.it makes much difference
c.it doesn't make no difference
d.it makes a difference
13.you can go out，______you promise to be back before 11 o'clock.
a.as far as b.so far as
c.when d.as/so long as
14.—i apologize for not being able to join you for dinner.
—______.we'll get together later.
a.go ahead b.not to worry
c.that's right d.don't mention it
15.christmas is ______ special holiday when ______ whole family are supposed to get together.
a.the；the b.a；a
c.the；a d.a；the