27. —— My goodness! I've just missed the train.
—— That's too bad. I am sure you__________it, if you had hurried.
| A．could have caught | B．had caught | C．would catch | D．could catch |
There was a time _____ hunger was a disturbing problem in this area.
| A．how | B．when | C．that | D．why |
His _____ expression suggests that the news he read just now must be _____.
| A．excited; exciting | B．excited; excited |
| C．exciting; exciting | D．exciting; excited |
It is _____ that Professor Smith will give us a lecture tomorrow.
| A．possibly | B．probably | C．likely | D．maybe |
_______ his research, man can set foot on the moon now.
| A．Because | B．Thanks to | C．So as to | D．In addition to |
The rest of the apple _________.
| A．were throwing away | B．was throwing away |
| C．were thrown away | D．was thrown away |