单项选择题
Can you remember all the ______ for our school ...
单项选择题Can you remember all the ______ for our school ( )
Don't ______ your books on the floor. ( )A....
单项选择题Don't ______ your books on the floor. ( )
We've done once but failed. We'll have to do it ______ ...
单项选择题We've done once but failed. We'll have to do it ______ time. ( )