How can they expect to learn anything        they never listen?

A. when                            B. until                          C. unless                        D. though

How can they expect to learn anything        they never listen?

A. when  B. until   C. unless       D. though

28．How can they expect to learn anything________they never listen?

A. when           B. until             C. unless           D. Though

How can they expect to learn anything_________they never listen?

A. when  B. until   C. unless       D. though