They left the town on the morning _____ June 22nd. [ ]

At times, parents find it difficult __________ with their teenage children.

Miss Li is_____ English teacher. We all like her very much.

An old soldier gave us a lecture a moment ago. In his lecture, he told us ________ in Wuxi inthe old days.

It’s four o’clock in the afternoon. The boys __ in the pool.