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Visitors ______ not to touch the exhibits.

A. will request        B. request       C. are requesting       D. are requested

Visitors ______ not to touch the exhibits.

A. will request        B. request       C. are requesting       D. are requested

Visitors ______ not to touch the exhibits.

A. will request        B. request       C. are requesting       D. are requested

Visitors ______ not to touch the exhibits.

A. will request      B. request      C. are requesting      D. are requested

 The visitors ________ not to touch the exhibits.

A. will request    B. request       C. are requesting    D. are requested

Visitors _____ not to touch the exhibits.

A. will request B. request C. are requesting　 　 D. are requested

Visitors _____________not to touch the exhibits.

A. will request       B. request       C. are requested      D. are requesting

16.[2001全國] Visitors ________ not to touch the exhibits.

Visitors ________not to touch the exhibits.

A.will request    B.are requested        C.are requesting    D.request