—Dear me! It’s you, Bob! I ______ to recognize you at first sight!
—Nor did I! Time has changed us a lot!
| A．fail | B．failed |
| C．have failed | D．had failed |
All the doctors in the hospital insisted that he________badly wounded and that he______at once.
| A．should be,be operated on | B．were, must be operated on |
| C．was,should be operated | D．was,be operated on |
.I wish I________a chance to talk with you about my writing before you left yesterday.
| A．have | B．had | C．had had | D．will have |
Not only_______polluted but________crowded.
| A．was the city,were the streets | B．the city was,were the streets |
| C．was the city,the streets were | D．the city was,the streets were |
I like_____ in the autumn when the weather is clear and bright.
| A．this | B．that | C．it | D．one |
1.He is talking so much about America as if he________ there .
| A．had been | B．has been | C．was | D．has gone |