China's high-speed railways _________ from 9,000 to 25,000 kilometers in the past few years.
are growing
have grown
will grow
had grown
---What’s your comment on the match? --- we ________, but today was not our day.
If my lawyer ______ here last Saturday, he ______ me from going.
______ the good chance to get promoted then, he would be a sales manager now.
They were abroad during the months when we were carrying out the investigation, or they _____ to our help.
Without you, I _______ the first prize in the speech contest. Thank you, John.