you have a good time in the US during theGolden Week Holiday — ______ Due to the temporary governmentshutdown, a lot of national parks were closed.

Could you drive me to the bookstore at noon if________?

Neither side is prepared to talk to ____ unless we cansmooth thing over between them.

Only by increasing the number of doctors by 50 percent ________ properly in this hospital. (2013·大纲全国，32)

The plant is dead. I _____ it more water.