The climate conference was attended by 11,000 people, it the largest UN gathering ever held.
The performance supposed to be popular______ to be a great disappointment after it was over.
Some pictures of the river brought the days back to the day______ they swam in it.
——What’ s the matter? —— The shoes don’ t fit properly.They____my feet.
In this experiment, they are woken up several times during the night, and asked to report what they____.
When he was alive, the old scientist used to say that knowledge ____from practice and he gained his experience by doing a lot of practical work.