--- I think we have met the word before.
--- Yes. It is in the reading material ____ we ____ reading yesterday.
| A．that; did | B．that; were | C．when; were | D．when; did |
Helping others is a habit,you can learn even at an early age.
| A．it | B．that | C．what | D．one |
The country has already sent up three unmanned spacecraft , the most recentat the end of last March.
| A．has been launched | B．having been launched |
| C．being launched | D．to be launched |
He knew the files could be of help to took over the job.
| A．anyone | B．someone | C．whoever | D．who |
The traffic rule says young children under the age of four and less than 40 pounds must be in a child safety seat.
| A．being weighed | B．to weigh | C．weighed | D．weighing |
He has behaved in the most extraordinary way; I can’this actions at all.
| A．account for | B．call for | C．send for | D．reach for |