1 . World Environment Day is a UN Environment-led global event,
A.what | B.that |
C.who | D.which |
A.who | B.where |
C.which | D.when |
A.that | B.where |
C.which | D.what |
1 . World Environment Day is a UN Environment-led global event,
A.what | B.that |
C.who | D.which |
A.who | B.where |
C.which | D.when |
A.that | B.where |
C.which | D.what |