---My goodness, who has had the tap water ______ ?---Sorry, I ____ have it turned off at once.
Lily’s mobile phone was left in a taxi accidentally, never______________ again.
A new teachnique ____the yields as a whole increased by about 30 percent.
No matter how frequently _____ ,the works of Shakespeare always attract large audiences.
The place _______ the bridge is supposed to be built should be _______ the cross-river traffic is the heaviest.
How do you think I should receive the reporter? — _______ you feel about him, try to be polite.