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(2013·福建，34)Not until he went through real hardship ________ the love we have for our families is important.　　　　　　　　　　　　　　　　　　

—Do you hear Jim and Mary broke up?
—No，I haven't heard of it，and neither ________ about it.

So much progress ________ made in studies that he is sure to pass the coming examination.

The computer was used in teaching.As a result，not only ________，but students became more interested in the lessons.

It was last night ________ I saw the comet.

Wal?Mart，the world's largest retailer(零售商)，sells in three months ________ the number?two retailer Home Depot sells in a year.

He taught his father how to get to know ________ is going on in his university life on the Internet.

It is obvious ________ the former Libyan government will be replaced with the opposition government.

By talking with them，I get to know ________ Russian people see their country and the US.

Some of you may have finished Unit One.________，you can go on to Unit Two.