The little boy wishes to be ___.
| A．a Lei Feng | B．the Lei Feng | C．Lei Feng | D．an Lei Feng |
At first he refused to admit his guilt but when he was shown the evidence he ______ and confessed (坦白).
| A．broke down | B．lay down | C．got down | D．put down |
________with the help you gave the blind man, mine is not worthy of being mentioned at all.
| A．Compare | B．To compare | C．Comparing | D．Compared |
It is usually warm in my hometown in March, but it ______ be rather cold sometimes.
| A．must | B．can | C．should | D．would |
The atmosphere of the earth ______ us from the strong sun light.
| A．prevents | B．keeps | C．stops | D．protects |
Don’t disturb me. I_______ letters all morning and have written ten so far.
| A．have written | B．am writing | C．was writing | D．have been writing |