I still remember the college and the teachers ________ I visited in London years ago.

Do you know when Jim _________?—I don’t know. As soon as he, I will call you.

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

Selina, are you____________ member of the swimming club?—No, but I joined _________art club last month.

Who is speaking there? —It be Uncle Li. He has gone to Shanghai.