170 Hurry up, ( ) you'll be late for school.
　　　① and　② but　③ or　④ so

171 Ethan can speak ( but / also / Spanish / only / not ) Japanese and Chinese.
　　　
172 I wast to go abroad to study English ( ) I am still in high school.
　　　① during　② unless　③ until　④ while

173 It won't be long ( ) they arrive at the hotel.
　　　① but　② before　③ after　④ while

174 You may use my car as ( ) as you drive carefully.
　　　① far　② more　③ well　④ long

175 The station was ( ) noisy that I couldn't hear what Isabella said.
　　　① so　② more　③ why　④ such

176 William opened the door quietly ( ) his mother wouldn't notice him.
　　　① so that　② unless　③ otherwise　④ because of

177 We're planning to go to the beach on Saturday ( ) it rains.
　　　① when　② whether　③ as　④ unless

178 ( ) it was early in the morning, many staff members were already working.
　　　① Despite　② During　③ If　④ Although

179 Olivia explained ( ) her grandfather was in the hospital.
　　　① if　② about　③ that　④ rather