Question

Don't handle the vase as if it ________made of steel.

1. A.
   is
2. B.
   were
3. C.
   has been
4. D.
   had been

Answer 1

B
考察虚拟语气。As if后面的句子如果表示的是假的事情，则使用虚拟语气。与现在将来相反，用过去时，be动词用were；与过去相反，则使用过去完成时。根据句意可知本题是表示与现在相反，故使用were；句意：不要那样放花瓶，好像它是铁做的一样。故B正确。