He had to retire(退休) early ______ poor health.
#58273
A
as a result
B
because
C
so
D
because of
推荐题目
________ Lily ________ Lucy is going with you because one of them must stay at home.
#55359
A
Not only；but also
B
Neither；nor
C
Both；and
D
Either；or
_____ it was very cold, _____ my friend still went swimming this morning.
#56204
A
Although;/
B
Although; but
C
But; although
D
/;although
You will fail your next exam ______ you start to work hard at your study now.
#58175
A
because
B
unless
C
so
D
if