4.Occasions are quite rare ______ I have the time to spend a day with the kids. 
#74682
A
who
B
which
C
why
D
when
推荐题目
This is a very lovely doll. I’ll buy it _____.
#67570
A
how much may it cost
B
no matter how it may cost
C
however much it may cost
D
how may it cost
We won’t give up ______ we should fail 10 times.
#67611
A
as if
B
except for
C
in case
D
even if