Mother’s Day, which accounts for a one-quarter of annual holiday purchases, according to the Society of American Florists, is ________ the day when flowers are delivered to the doorsteps of many mothers.
| A．transparently | B．theoretically |
| C．traditionally | D．thankfully |
—The cars give off a great deal of waste gas into streets. —Yes. But I'm sure something will be done to __________air pollution.
| A．reduce | B．remove | C．collect | D．warn |
The performance of the host，__________ to please the audience and draw their attention, was greeted with a cold silence, however.
| A．had intended | B．intended | C．intending | D．to intend |
We __________a meeting when suddenly a womanbroke in.
| A．had had | B．had | C．were having | D．has had |
He arranged __________ a man to meet his uncle at the station because he was busy with work.
| A．of | B．for | C．/ | D．with |
If you keep on, you'll succeed __________.
| A．in time |
| B．at one time |
| C．at the same time |
| D．on time |