I’d like to start my own business next year – that’s __________ I will face my big challenge in life.

We didn’t believe it ______ we saw it with our own eyes. After all, to see is to believe.

68 It was at four o’clock in the afternoon____ he and his grandpa reached the museum in Guanghan.

Our car broke down suddenly and the heavy rain our helplessness.

May I speak to your manager Mr. Williams at fiveo’clock tonight —I’m sorry, Mr. Williams _____ to a conference beforethen.