______ for half a month, the town was running out of food and clothing.
| A．Having flooded | B．As the town had flooded |
| C．Having been flooded | D．To have been flooded |
—— Where ＿＿＿＿＿＿＿＿?
—— I got stuck in the heavy traffic, or I＿＿＿＿＿here earlier.
| A．did you go； had arrived | B．are you； would come |
| C．were you; would come | D．have you been； would have been |
I lost your address, otherwise I＿＿＿＿you long before.
| A．had visited | B．have visited | C．would have visited | D．should visit |
Very loud noise＿＿＿＿＿make people ill or drive them mad.
| A．should | B．can | C．need | D．must |
＿＿＿＿＿he come, the problem would be settled.
| A．Would | B．Should | C．Shall | D．If |
Without your help, I ＿＿＿＿the exam last term.
| A．failed in | B．would have failed | C．wouldn’t pass | D．would fail |