I wonder．
Yes，of course．（ ）
A．why we will visit this museum
B．when we will get to the museum
C．whether the museum is worth visiting
D．what we can see in the museum
He never smokes _______ drops litter in public.（ ）
| A． |
and |
B． |
or |
C． |
but |
D． |
So |
He got____ birthday cakes on his ____ birthday.（ ）
| A． |
second；fifteen |
B． |
two；fifteen |
| C． |
second；fifteenth |
D． |
two；fifteenth |
We find ________ more useful for students to do new eye exercises.（ ）
| A． |
it |
B． |
this |
C． |
one |
D． |
that |
_____ such a cold morning，I also got up______ 6 o'clock to go for a run as usual.（ ）
| A． |
Before；in |
B． |
At；to |
C． |
On；at |
D． |
In；at |
He is going to buy _______ useful book.And _______ book is on science.（ ）
| A． |
a；an |
B． |
a；the |
C． |
an；an |
D． |
an；the |