【单选题】
He left home without ______ any message to his parents.
【单选题】
There was so much noise in the classroom that the teacher couldn’t make himself _______.
【单选题】
Without them you will not be able to( ) the tasks
【单选题】
There is no use a lot without anything.
【单选题】
Without air, there __________ no living things.
【单选题】
On no account _____ever leave the baby at home alone.
【单选题】
A lot of students ____ the campus since July 1.
【单选题】
The reason I didn’t go to school that day was ____ill.
【单选题】
The scientific quest is grounded in reason and ____ inference from known facts.
【单选题】
Which of the following is the time when students work as a whole class?
①
When all the students are under the control of the teacher
②
When students work in pairs on an exercise or a task
③
When students work in small groups
④
When students are expected to work on their own at their own speed.