31. ______matters most in learning English is enough practice.
| A．What | B．Why | C．Where | D．Which |
—Have you thought of a topic for your speech yet?
—No, I______a lot about it, but I haven’t decided.
| A．will think | B．have been thinking | C．had thought | D．was thinking |
The users of this new mobile phone can check e-mails _____ they happen to be.
| A．whatever | B．wherever | C．what | D．where |
What_____pleasant surprise! I’ll tell Richard about it____minute he comes home.
| A．a, the | B．a, a | C．a, / | D．/, the |
Tom studied hard .He wanted to ________ of the good chance to learn .
| A．make the least | B．make the most | C．make up | D．make out |
The president spoke at the business meeting for nearly an hour without _____his note .
| A．bringing up | B．referring to | C．looking for | D．trying on |