28. The Science Museum, _____ we visited during a recent trip to Britain, is one of London’s tourist attractions.
Every day the mother seems to be busy until 10 o’clock at night, ____the rest of the family have fallen asleep.
We have to delay the party till next week, ____ we will not have something important to do. A. when B. which C. at which D that
I don’t like such a person ____ often lies before your face.
By using ears one can tell the direction ____ a sound comes.
I don’t believe the reason ____ he has given for not coming to the lecture.