The boy was curious about how the waste paper was        into a model kite.
#101558
A
improved
B
united
C
transformed
D
mixed
推荐题目
. The new English teacher as well as the excited students _____ a new English song on the Internet.
#103669
A
are learning
B
is learning
C
have learned
D
has been learned
The woman insisted that she ______ the mobile phone but none of the supermarket guards would believe her.
#99636
A
should not have stolen
B
should not steal
C
not have stolen
D
had not stolen
Social attention should be paid          our earth from        .    
#102039
A
to prevent; being polluted
B
to preventing; polluted 
C
to prevent; polluting
D
to preventing; being polluted