I supported him in time , otherwise he off the bike .
| A．might fall | B．would fall |
| C．would have fallen | D．should have fallen |
Tom does speak Chinese well, but his reading and writing skills leave much _______.
| A．to improve | B．to be improved |
| C．improving | D．Improve |
We were invited to his birthday party. If she doesn’t go today, _______.
| A．nor do I | B．neither do I |
| C．neither shall I | D．nor I shall |
_______ the meeting himself gave them a great deal of encouragement.
| A．The president will attend | B．The president to attend |
| C．The president attended | D．The president’s attending |
It’s useless envying others their success. It’s time you _______ hard.
| A．must work | B．must work | C．work | D．Worked |
_______ I could express my thanks to the traveler, he had already disappeared in the rain.
| A．Before | B．When | C．Until | D．While |