With the development of production and science,radio a wide use in a short time.
| A．found | B．finds | C．have found | D．has found |
The chairman thought _____necessary to invite Professor Smith to speak at the meeting。
| A．that | B．it | C．this | D．him |
They desired that they___ the right to vote。
| A．had | B．have | C．having | D．To have |
Busy as they are, parents should ______ at least two hours to spend with their children。
| A．set out | B．set away | C．set aside | D．set off |
The bridge____ next month depends on money collected among the villagers。
| A．build | B．to be built | C．built | D．be building |
Not only should you get used to _____ under difficult conditions but also you should pay more attention to _____ your work well。
| A．work; do | B．working; doing | C． work; doing | D． working; do |