However, at times this balance in nature is disturbed, ____ a number of possibly unforeseen effects.
Oh, it’s you! I never ____ meeting here.
– Have you ____ your brother to give up smoking? -- No. I talked to him yesterday but he would have none of my advice.
I’ve won a holiday for two to Florida. I _____ my mum.
Mr. Blake ____ Shanghai in a few days. Do you know when the earliest plane ____ on Sunday?
Please ask the salesgirl ____.