_________ he met with the difficulty did he realize the importance of our help.
| A．Even though | B．Never until |
| C．Only before | D．Ever since |
— I drove to Zhuhai for the air show last week.
— Is that _________ you had a few days off？
| A．why | B．when | C．that | D．where |
It is generally considered unwise to give a child _________ he or she wants.
| A．however | B．whatever | C．whichever | D．whenever |
_________ the meeting will be held in Beijing is not known yet.
| A．Whenever | B．If | C．Whether | D．That |
_________ we can’t get seems better than _________ we have.
| A．What； what | B．What； that | C．That； that | D．That； what |
—I think it is going to be a big problem.
—Yes, it could be.
—I wonder ______ we can do about it. (北京 2002春季)
| A．if | B．how | C．what | D．that |