(2013·陕西师大附中模拟)If we had taken such effective measures much earlier, the river ________ so seriously now.
A．is not polluted
B．would not be polluted
C．had not been polluted
D．would not have been polluted
(2010·江苏高考)George is going to talk about the geography of his country, but I'd rather he ________ more on its culture.
A．focus B．focused
C．would focus D．had focused
(2012·北京高考)Don't handle the vase as if it ________ made of steel.
A．is B．were
C．has been D．had been
(2012·辽宁高考)Jack is a great talker. It's high time that he ________ something instead of just talking.
A．will do B．has done
C．do D．did
(2011·北京高考)—Where are the children? The dinner's going to be completely ruined.
—I wish they______always late.
A．weren't B．hadn't been
C．wouldn't be D．wouldn't have been
(2013·浙江高考)Eye doctors recommend that a child's first eye exam ________ at the age of six months old.
A．was B．be
C．were D．is
