What would have happened,___as far as the riverbank?
| A．Bob had walked farther |
| B．if Bob should walk farther |
| C．had Bob walked farther |
| D．if Bob walked farther |
That was the last time I saw my father before he _____.
| A．pass on | B．pass away | C．pass off | D．pass down |
The experiment __to be .
| A．turned out; greatly success | B．turned out; a great success |
| C．turned out; greatly successful | D．turned up; great success |
Many _______ of years later, the first extremely small plants began to appear on the surface of the water.
| A．millions | B．million | C．million of | D．millions of |
As a child, Franc ＿＿＿＿＿.
| A．was alive | B．grew patience | C．ran wild | D．came true |
They won’t buy any new clothes because they ________ money to buy a new car.
| A．save | B．were saving | C．have saved | D．are saving |