下列字母中全部含有元音字母Ee[i:]的读音的一组是 。
It is reported that a space station ______ on the moon in a few years.
During the 12th five -year plan, China ____ great achievements in environmental protection.
I have some difficulty ______English.
You _______be too careful when you are driving.
Spud practiced _____harder and got the coach to change his mind.