The reason for his success is ______ he worked very hard.
| A．why | B．that | C．whether | D．how |
Gary Locke , a Chinese-American, once______ as the governor of Washington for 8 years and now is U．S．Commerce Secretary．
| A．had worked | B．worked | C．is working | D．has been working |
The traditional ____ to dealing with complex problem is to break them down into smaller, more easily managed problems．
| A．approach | B．invention | C．meaning | D．arrangement |
______ almost all our time to our schoolwork in the past three months, we have almost no time for fun and play．
| A．Having devoted | B．Devoted | C．To devote | D．To have been devoted |
Nowadays in India, women with independent incomes are refusing to______to the traditional practice of arranged marriage．
| A．give in | B．pick up | C．hand in | D．make up |
We agreed to accept ______ they thought was the best tourist guide．
| A．whatever | B．anyone | C．whichever | D．whoever |