29. The field research will take Joan and Paul about five months; it will be a long time ______ we meet them again.
Have you watched the TV play Man Qiu, and _____ leading actor is my favorite?
The school to which David ______ his paintings is beautiful.
Young drivers are____ to have accidents than old drivers.
Though it was noisy here, he _______reading.
Yesterday I _______ an old friend of mine at the shopping mall.