I promise _____ else can you find _____ better computer at such a low price.
Mr. Hall understands that _______ math has always been easy for him, it is not easy for the students.
Sally worked late in the evening to finish her report ________ her boss could read it first next morning.
It was an exciting moment for these football fans this year, _________ for the first time in years their team won the World Cup.
—Was his father very strict with him when he was at school?—Yes, he had never praised him _______ he became one of the top students in his grade.
—It’s a long time _______ I drunk so much. —Yes, and what a pity it is since it will be a long time ______ we see each other again.A before; since B. when; when C. since; before D. when; then