_________a reply, he decided to write a sixth letter.
| A．Not receiving | B．Not to receive |
| C．Not having received | D．Having not received |
Scientists are convincedthe positive effect of laughter_____physical and mental health.
| A．of, at | B．by, in | C．of, on | D．on, at |
If you are unable to attend the interview, for _____ reason, you should inform us immediately.
| A．whatever | B．what | C．whichever | D．which |
They didn’t have any sweater in my size, and _____ I’d already decided I’d rather save the money.
| A．somehow | B．somewhat | C．however | D．anyway |
— Did Alice enjoy the concert held in Grand Theater yesterday?
— Yes, she did. She _____ such an excellent concert for a long time.
| A．didn’t take part in | B．wouldn’t take part in |
| C．hasn’t been in | D．hadn’t been in |
— Although she sometimes loses her temper, her students like her no less.
— That’s it. _____ , she is really a good teacher.
| A．At all | B．In all | C．Above all | D．After all |