______we were worried about was ________they could manage to control the pollution.
#69123
A
That how
B
That whether
C
What that
D
What whether
推荐题目
—Really,I don’t know_______to join the army or to find a job after my graduation.—Why don’t you_______ your parents’ advice? They will surely help you.
#72279
A
if;take
B
whether;follow
C
if;give
D
whether;seek
