________ your son is well again, you no longer have anything to worry about.
#32324
A
If
B
when
C
Now that
D
As soon as
推荐题目
it is normal for parrots to talk, Einstein, a small bird, is unusual in that whenever she hears a new word or sound, she repeats it over and over until she masters it.
#30576
A
As
B
When
C
While
D
Since
Between the two periods of classes is a break,_____we can have a short rest.
#79676
A
then
B
where
C
when
D
Which
They had just finished the work _______ there was another one waiting for them.
#31462
A
while
B
when
C
as
D
since
．In Australia there are over 140 species of snakes, many of ______ are extremely dangerous.
#34499
A
which
B
that
C
them
D
those