—The terrible accident is under investigation.
—Actually, quicker action _____ those workers trapped in the mine.
| A．might have saved | B．must have saved |
| C．need have saved | D．could have saved |
I feel it is your husband who _______ for the spoiled child.
| A．is to blame | B．is going to blame | C．is to be blamed | D．should blame |
The Chinese teacher asked her to _______ unnecessary words and sentences.
| A．bring out | B．let out | C．leave out | D．make out |
Only when I left my parents for Italy ________ how much I loved them.
| A．I realized | B．I had realized | C．had I realized | D．did I realize |
The experiment shows that proper amounts of exercise, if _______ regularly, can improve our health.
| A．being carried out | B．carried out | C．carrying out | D．to carry out |
When I opened the door, I found my father sitting in his chair, completely ______ in the humorous stories he was reading.
| A．absorbed | B．losing | C．attracted | D．addicted |