We cannot figure out ________ quite a number of insects, birds, and animals are dying out.
#73021
A
that
B
as
C
why
D
When
推荐题目
If you are traveling the customs are really foreign to your own, please do as the Romans do.
#67615
A
in which
B
what
C
when
D
where
The companies are working together to create _____they hope will be the best means of transport in the 21st century.
#72930
A
which
B
that
C
what
D
Who
When ______ help, one often says “Thank you.” or “It’s kind of you.”
#68004
A
offering
B
to offer
C
to be offered
D
offered
________，as long as I’m with nature，I don’t care.
#67084
A
However tough the journey is
B
Whatever tough the journey is
C
However the journey is tough
D
Whatever the journey is tough