－ What does the sign over there read － “No person ________ smoke or carry a lighted cigarette, cigar or pipe in this area”

Travellers, when ____________ the checks, have to sign the checks in the presence of the bank or service clerks

If a boy or a girl has grown up in a home with sharing tasks and decisions，he or she will probably______.

29．__________ when you are on the bus or bike．

Either he or I ______to the airport.

Dreams are often an elegant means of highlighting problems ______ in the present or the past.

Ifa teacher asks students to fill in the blanks in a passage with that, which or whom,he/she is least likely focusing on grammar at_________．

The machine he originated and perfected has no modern _____ or ancient prototype.

Virginius would feel more or less guilty when he______.

The British Empire was replaced by the British Commonwealth or the Commonwealth of Nations in_____.

Hurry up, or you ______ catch the train.

______no air or water, there would be no life in the world.