In the past ,the miners had to be extremely to bear the uncomfortable conditions at mines.
| A．difficult | B．rough | C．tough | D．brave |
If you＿＿＿＿wait a moment, I’ll go and find our manager.
| A．can | B．should | C．will | D．must |
It is surprising that he＿＿＿＿at the meeting.
| A．was | B．be | C．is | D．were |
If only I＿＿＿＿＿how to operate a computer as you do!
| A．had known | B．wou欤?know | C．should know | D．knew |
The general ordered that the thief＿＿＿＿.
| A．be punished | B．would punish | C．would be punished | D．should punish |
When a pencil is partly in a glass of water, it looks as if ＿＿＿＿.
| A．breaks | B．has broken | C．were broken | D．had been broken |