For environmental reasons，we _______as well take these waste products and have them recycled.
| A．shou1d | B．would | C．might | D．could |
were also invited to the party.
| A．Mr Smith | B．The Smith | C．The Smiths | D．Smiths |
The United Nations in 1945.
| A．were found | B．were founded | C．was founded | D．was found |
I, who your good friend, will share your joys and sorrow.
| A．am | B．is | C．are | D．was |
Between the two buildings a monument.
| A．stand | B．stands | C．standing | D．is standing |
Laying eggs the ant queen's full-time job.
| A．is | B．are | C．has | D．have |