David plays football but he doesn't play piano （ ）
| A． |
\，the |
B． |
the，\ |
C． |
a，the |
They have been friends ________ they first met.
| A． |
since |
B． |
while |
C． |
before |
D． |
after |
— Excuse me, what is Nick doing?
— Look! He ________ flowers outside.
| A． |
waters |
B． |
watered |
C． |
is watering |
D． |
has watered |
This year, the family went camping on ________ Day, June 1st.
| A． |
Child |
B． |
Child’s |
C． |
Children |
D． |
Children’s |
We must clean up ________ classroom before going home.
| A． |
we |
B． |
us |
C． |
our |
D． |
ours |
There is ________ bank across from the hospital.
| A． |
a |
B． |
an |
C． |
the |
D． |
/ |