【单选题】There different classes in our school
【单选题】The teacher spoke so fast that all the students looked at him with a rather ______ expression.
【简答题】电离层由围绕地球的处于不同高度的3个导电层组成的,这3个导电层分别 称为( )、( )、( )。
【单选题】The teacher spoke so fast that it was hard for the students to ______ what he was saying.
【单选题】The teacher spoke so loudly as __ clearly in the crowded meeting hall.
【单选题】—What’s the matter? You looked unhappy. —Well, the teacher spoke so quickly and I can __________ understand it.
【单选题】There different classes in our school.
【单选题】Are there different ________ in this exhibition?
【单选题】The teacher spoke so loudly ______ the students could hear him clearly.
【单选题】There different classes in our school.