—John has hurt his leg.
—Really? ?
| A．Who did that | B．Why was he so careless |
| C．What’s wrong with him | D．How did that happen |
She couldn’t stop ________ when he told her the funny joke.
| A．to laugh | B．laughing |
| C．laughed | D．to laughing |
It _____ four years since we ______to learn English.
| A．is , began | B．has been , begin |
| C．has, been | D．had been ,began |
— When shall we go to watch the basketball match in the sports centre?
— Not until the work _________ tomorrow.
| A．will be finished | B．is finished |
| C．will finish | D．has been finished |
–I phoned you at 5:00 yesterday afternoon, but nobody answered me.
-Sorry. I ______ the flowers in the garden at that time.
| A．am watering | B．was watering |
| C．water | D．will water |
-- __________ try your best to help people in need?
-- It will be an experience you will never forget.
| A．What about | B．You’d better |
| C．Why not | D．Why don’t |