—We’ve missed the last bus! Now We’ll have to walk home．
Yes, we the library five minutes earlier．
| A．would have left | B．must have left |
| C．might have left | D．should have left |
I broke my relationship with John because he always found _____ with me.
| A．error | B．mistake | C．fault | D．failure |
The authorities declared that because of the war petrol was _____ and had to be rationed (定量供应).
| A．inadequate | B．rare | C．lacked | D．scarce |
I'm sorry but what he thinks is not of the _____ importance to me.
| A．merest | B．lowest | C．last | D．least |
Many people complain of the rapid _____ of modern life.
| A．rate | B．pace | C．speed | D．step |
The two dogs started to fight, so we tried to _____ them.
| A．split | B．separate | C．tear | D．divide |