Is this the reason ______ at the meeting for his carelessness in his work?
| A．he explained | B．what he explained |
| C．how he explained | D．why he explained |
The teacher suggested English from time to time every day.
| A．having read | B．us to read | C．our reading | D．being read |
Occasions are quite rare ____ I have the time to spend a day with my kids.
| A．who | B．which | C．why | D．when |
Of the 9,500 drivers since the beginning of the year, 23% were found lacking road
knowledge.
| A．test | B．testing | C．tested | D．were tested |
It didn’t surprise us at all caused his success.
| A．why | B．that | C．how | D．what |
He called the police for help, that the problem was more than he could deal with.
| A．having been realized | B．realizing | C．realized | D．had realized |