mọi người giúp mình với ạ:(( làm ơnnn 189. _______ the bans remained in force, Turkey could not claim to be fully democratic. A) Unless B) Provided C) As long as D) Because of 190. Doctors often use X-rays _____ they can pass through skin and flesh. A) so that B) as long as C) provided D) nevertheless 191. Within another hundred years we will have to find alternative sources of energy, _______ the world’s reserves of oil will not last that long. A) so that B) since C) unless D) while 192. An airline pilot and a racing driver are similar _______ they must possess good judgment and the ability to react quickly in a crisis. A) however B) so that C) in that D) even if 193. They built a high fence around the building _______ no one could get out. A) as B) so that C) since D) because 194. The old woman had to stand all the way _______ no one let her sit down on the bus. A) so B) so that C) since D) although