About _____ of the students don't like studying online in my class， because they can't discuss with their classmates．（ ）
| A． |
one three |
B． |
one thirds |
C． |
one third |
It's not a good for students to go online just for answers to homework．（ ）
A．skillB．gameC．hobbyD．habit
Remember to keep the dog on a leash （狗链） you walk it， honey!
Sure． I won't let it hurt others．（ ）
A．untilB．afterC．whileD．since
How time flies! The middle school life is coming to an end．
Yes． We have to say goodbye， our friendship will last forever．（ ）
A．forB．butC．orD．so
My 80﹣year﹣old grandma has learned to chat on WeChat!
Amazing! It's truly too late to start doing things．（ ）
A．alwaysB．neverC．sometimesD．usually
Hong Kong﹣Zhuhai﹣Macao Bridge， the world's longest sea﹣based project， brings people in those three cities within "one﹣hour living circle"．（ ）
A．aB．anC．theD．/