The government has taken some measures to solve the shortage of electricity , but it may be some time _________the situation improves

（题文）When to strong sunlight, babies tend to increase temperature, nervous and anxious.

It was not until dark _____ he found _____ he thought was the correct way to solve the problem. [ ]

Have you found the book ________ you lost yesterday—Yes. I left it in the library.

What’s your Englishteacher’s name?– ________ name isJohn Smith.