--- Have you got any particular plans for the coming holiday?
--- Yes. , I’m going to visit some homes for the old in the city.
| A．If ever | B．If busy | C．If anything | D．If possible |
------ Why does the lake smell terrible?
------ Because large quantities of water _________.
| A．have been polluted | B．has polluted |
| C．have polluted | D．has been polluted |
I ________ through that bitter period without your generous help.
| A．couldn’t have gone | B．didn’t go | C．would go | D．hadn’t gone |
By the time Jack returned home from America, his son __________ from college.
| A．graduate | B．has graduated | C．had graduated | D．had been graduated |
She was good at physics _________she found it boring.
| A．despite | B．in spite of |
| C．in spite the fact that | D．despite the fact that |
The experiment show that proper amount of exercise, if ________ regularly, can improve our health.
| A．carry out | B．carried out | C．to carry out | D．being carried out |