Half of the books ________easy for the students to read.  
#44200
A
are
B
is
C
am
D
be
推荐题目
The city government is planning to build a factory to deal with the industry waste,but when and where to build it________.
#85688
A
haven’t been decided   
B
aren’t decided
C
hadn’t been decided   
D
hasn’t been decided
Don’t handle the vase as if it ______ made of steel.
#85800
A
is
B
were
C
has been
D
had been
The sheets for your bed____  washing.
#86141
A
needs
B
areneeding
C
want
D
arewanting