Here _____a set of keys.The keys _____Bob’s.
#43754
A
is,are
B
are,is
C
is,is
D
are,are
推荐题目
 I think maths ____ very interesting. 
#86167
A
are 
B
is 
C
sound 
D
seem
Nothing except some chairs _____ there. 
#86184
A
was
B
were
C
has
D
had
 There are many trees on_______ side of the street, and_______ of the trees is still growing.
#43651
A
both; the number
B
either; the number
C
both; a number
D
either; a number