This book __________ ten units,__________ three main revision.
People try to avoid public transportation delays by using their own cars and this ______ creates further problems.
. A notice was____in orderto remind the students ofthe changed lecture time.
. In our class, when the bell rang and the teacher closed his book, it was a______for everyone to stand up.
Now, in our country free medical treatment covers sickness of mind as well as ______sickness. A. ordinary B. average C. regular D. normal
The biggest whale is ______ blue whale, which grows to be about 29 meters long—the height of ______ 9-story building.