will Mr．Brown be back？
In an hour．（ ）
| A． |
How long |
B． |
How often |
C． |
How soon |
D． |
How much |
_____ interesting stories they are!（ ）
| A． |
What an |
B． |
How |
C． |
What |
This is my pet dog．_____ name is Dingding．（ ）
| A． |
Its |
B． |
It's |
C． |
It |
Be quiet． Your grandmother _____ in the room．（ ）
| A． |
sleeps |
| B． |
is sleeping |
| C． |
sleep |
Mike and Jim's room is tidy, _____ their sister's is not．（ ）
| A． |
but |
B． |
and |
C． |
or |
About _____ of the students don't like studying online in my class， because they can't discuss with their classmates．（ ）
| A． |
one three |
B． |
one thirds |
C． |
one third |