---What is the most useful modern invention?

---Can you imagine ______ without electricity?

---What makes you think Betty is not likely to succeed?

---________．

---How many times have you been to Shanghai?

---Oh, at least seven times, if ________ more．

---I can't find my wallet．

---You ________ it on the bus．

--- I promise her daughter ______ get a nice present on her birthday.

--- Will it be a big surprise to her?

---Cars moved very slowly in the 1930's．

---Yes，but，they ______ move more quickly than in 1920's．

—Look! Everything is under construction(建设).

—What is the small building that ________ for?

— ________ will win the first place in the relay race?

—I don't know.

--Would you like me ________ the radio a bit?No, it’s all fight．

--I’m used to ________ with the radio on．