He knew the problem was serious and promised to look into it _____ he reached office.

Mary came ______in the Chinese exam. This is _______time she got the good mark.

Is there __________ in today’s newspaper? — Yes. Ding Junhui will take on Xiao Guodong in the first ever world ranking final between two Chinese players at the Shanghai Masters on Sunday.

You should ________ your son. He works harder than before.—Thanks, I will.

Is __ your brother?