1. What it was to become was a mystery until the dust began to slowly combine into a ball moving around the sun.

_________________ （使大家吃惊的是）is that he didn’t come to the meeting.

What surprised everybody

2. ________________（他所做的） added to our difficulty.

What he did

_____ we can’t get seems better than ____ we have. What; what B. What; that C. That; that D. That;what _____ made the school proud was _____ more than 90% of the students had been admitted to key universities. A.What;because B. What;that;C. That;what D.That;because