12. The Chinese government has decided to develop the west of China, ________, I dare say, will benefit the people there, especially those who are still leading a poor life.
| A．what | B．whatever | C．which | D．That |
I can never forget the days _____ we worked together and the days _____ we spent together.
A. when; which B. which; when C. what; that D when; when
The Beijing express had _____ on time when we hurriedly got to the platform.
| A．pulled on | B．pulled out | C．pulled round | D．pulled off |
—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 |