-I'm sad to hear that Yuan Longping passed away.
-So am I.We lost a hero.His _____________ on hybrid（杂交）rice helped Chinese people solve the problem of eating.
| A． |
surveys |
B． |
reports |
| C． |
researches |
D． |
achievements |
They worked for days， and finished the task successfully．（ ）
| A． |
twelve； two |
B． |
twelve； second |
| C． |
twelfth； two |
D． |
twelfth； second |
Could you tell me_____________ this morning？
I am sorry， Mrs． Lin． I got up so late that I couldn't catch the first bus．（ ）
| A． |
why were you late for class |
| B． |
if you were late for class |
| C． |
why you were late for class |
| D． |
how you went to school |
Do you know that our team won the first prize in the basketball games？
Really？ _____________ good news!（ ）
| A． |
What |
B． |
What a |
C． |
How |
D． |
How a |
We're not sure _____________there'll be_____________ or not tomorrow．（ ）
| A． |
if； rains |
B． |
if； rainy |
| C． |
whether； rain |
D． |
whether； raining |
Where is your uncle？ I haven't seen him for a long time．
Oh， he_____________ Sydney．（ ）
| A． |
went to |
B． |
has been to |
| C． |
has gone to |
D． |
goes to |