The number of foreign students attending Chinese universities __________ rising steadily since 1990.
Cars do cause us some health problems—in fact far more serious ________ than mobile phones do.
It is exactly the way ________ we speak ________ makes our teacher angry.
Nobody would stand out admitting the fact, for some reason, ________ they lost the game.
The teacher told the student to go back ________ he sat.
--Did you watch the football match last night? --No, there was something wrong with my TV and it couldn’t ________ any programs.