Having checked the doors were closed and ______ all the lights were off, the boy opened the door to his bedroom.
#31421
A
why
B
that
C
when
D
where
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______ I went to Mount Hua, I was deeply impressed with its beautiful scenery.
#30935
A
For the first time
B
The first time
C
At first
D
It was the first time
_____ maths is concerned, Tom is the best student in our class.
#32676
A
s long as
B
s well as
C
s soon as
D
s far as
I am determined to get a ticket for the concert ____ it means standing in a line all night.
#30851
A
as though
B
even if
C
as if
D
so that
_____ the police thought he was the most likely one, since they had no exact proof about it,they had to set him free.
#31560
A
As long as
B
If only
C
Although
D
As though