I take ________ everything I said about Paul. I realize now that it wasn't true.

I’m afraid Petra is on the phone. Do you want to come in and waiting.

Choose the correct answer to complete the sentence. "If I heat water long enough, it _____"

Choose the best answer: 
Tom has an excellent memory for ____________ .

Choose the correct answer to complete the sentence. "Researchers are developing low-cost devices______ can detect water pollutants in rivers and lakes."

“Mary looks sad. Did you tell her about the accident?” - “Yes, but I _____ her later.”

Choose the correct response to each of the following exchanges.

A: “____?"

B:  "It's ten minutes' walk from here.”

There are so many types here, and I really don't know which one I _____ choose. 

If you’ve got a headache, why don’t you try _______an aspirin?

Choose the correct answer to complete the sentence. "My computer always crashes _____ a CD is inserted"

 - “Don’t forget to come to my birthday party tomorrow.” -“ _____. “ 

The direct sources of fresh water in lakes are rain, melted snowy and ice.

Please ________.the light, it’s getting dark here.

Choose the best answer: 
Just ____, Bill. Let’s think about it for amoment .

Everyone in the class was so clever that couldn’t ________ up with them.

_____ it rain tomorrow, we will put off the visit to the Marble Mountains. 

Choose the best answer: 
He is against the idea , but I think I can ___him _____ it.

My younger sister read the whole book without the ________ difficulty.

My mother permitted me to go out at night. She said, "You_____ go out tonight". 

Never ________ until tomorrow what you can do today.

Choose the word(s) CLOSEST in meaning to the following word(s). "sustainable"