I am very ____________ about expressing my opinions in public in case I may make mistakes.
| A．cautious | B．hospitable | C．gracious | D．nostalgic |
By the time the fire-fighters arrived, the fire had been put＿＿＿by the teachers and the students.
| A．down | B．away | C．out | D．off |
Such a problem is＿＿＿＿difficult for a primary school student ＿＿＿.
| A．so； to work | B．very too； to work out |
| C．rather too； to work out | D．quite too； to answer |
The railway was opened＿＿＿＿＿＿traffic＿＿＿＿＿＿＿ April 4, 1985.
| A．to； on | B．to； in | C．by； on | D．for； on |
Ted has been absent＿＿＿＿＿class for quite some time.
| A．for | B．with | C．of | D．from |
He divided the sweets＿＿＿the children who were divided ＿＿＿three groups.
| A．in； in | B．into； into |
| C．between； in | D．among； into |