--I called  you  yesterday  morning ,but no one answered.   

    --Oh, I          in my garden.

A. watered the flowers

B. am watering the flowers      

C. was watering the flowers

-- Excuse me, sir, smoking          in the gas station.

    -- Oh, I'm really sorry.

A. doesn't allow        B. isn't allowed        C. aren't allowed

-- The boy can speak both English and Japanese ______ he is only ten.

    -- Wow, what a clever boy!                            

A. if           B. becauseC. though

---Nick, would you mind         out of the bathroom?

     --- Sorry. I won't be long.

A. come          B. to come C. coming

--         does your cousin go to the gym?

      -- Twice a week.

A. How long          B. How often        C. How soon

-- Is that girl Susan?

  -- It ______ be her. She left for Beijing yesterday.

A. needn't            B. can't         C. mustn't

--- Mum, where are my socks?

    --- Under your bed. You should         your things.

A. put on            B. put down       C. put away

---Dad, would you please drive       ?

    ---No hurry. We have enough time before the plane takes off.

A. faster            B. more slowly        C. more carefully

--- David, why are you so excited?

--- My father has made a          that he will take me to Tibet next month.

A. face               B. promise            C. mistake

Mr. Wang often encourages us_______close to nature and enjoy its beauties

A. get             B. getting          C. to get