There is______unhappy boy sitting on______seat over there who looks very sad．（ ）
| A． |
a； a |
B． |
a； the |
C． |
the； the |
D． |
an； the |
Do you know _______ at this time last night？
Sorry，I don't know．
| A． |
what she is doing |
B． |
what she was doing |
| C． |
what is she doing |
D． |
what was she doing |
We still remember the lovely teachers ______ have taught us for 3 years．（ ）
| A． |
who |
B． |
whose |
C． |
whom |
D． |
which |
Where is your father，Jenny？
He isn't at home，he ___ to Shanghai on business．（ ）
| A． |
has been |
B． |
has gone |
C． |
went |
D． |
will go |
2017 Cool City．Liupanshui Summer International Marathon ______ on 23rd July，（ ）
| A． |
will hold |
B． |
holds |
| C． |
will be held |
D． |
to hold |