—I’d like to invite you to my birthday party this evening.—Thanks, but ____ I’ll have time I’m not sure at the moment.
#74155
A
while
B
whether
C
if
D
when
推荐题目
She made a note of it ______ she might forget. 
#74562
A
so that
B
in order that
C
if
D
in case
Come and see me whenever ____ .
#68238
A
you are convenient
B
you will be convenient
C
it will be convenient for you
D
it is convenient to you
I don't like ______ as you read.
#73354
A
the novels
B
the such novels
C
such novels
D
same novels