On February 25，President Xi Jinping announced that China has made a "complete ________" in its fight against poverty （贫困）.
| A． |
victory |
B． |
progress |
| C． |
difference |
D． |
improvement |
Please tell me_____you have learnt English．
For three years．（ ）
| A． |
how long |
B． |
how often |
C． |
how soon |
He felt tired， so he stopped______a rest under the tree．（ ）
| A． |
having |
B． |
have |
C． |
to have |
Get up early，_____ you will miss your train．（ ）
| A． |
or |
B． |
and |
C． |
but |
I _____ a math problem with Joe when Mike called me up．（ ）
| A． |
have discussed |
B． |
discussed |
C． |
was discussing |
The nurse _____ is looking after the old man is Tom's sister．（ ）
| A． |
which |
B． |
who |
C． |
what |