As simple and convenient way to get        Latest fashions online, online shopping also has        major problem—you can’t see whether they fit or not.

A．the;the

B．不填；the

C．the;a

D．不填；不填

All the scientific evidence ________ that increasing use of chemicals in farming ________ damaging

our health. [    ]

A . show; are        

B. shows; are

C. show; is        

D. shows; is