Please tell me how the accident _______.I am still in the dark.
| A．came by | B．came upon |
| C．came to | D．came about |
—— There will be a storm soon.
—— I am afrai?＿＿＿＿＿.
| A．it | B．not | C．there won’t | D．maybe |
＿＿＿＿＿ heat is different from temperature?
| A．How do you think | B．How you think | C．What do you think | D．What you think |
＿＿＿＿＿ his face, the young man must be over 20.
| A．Judged from | B．Judged | C．Judging from | D．Judging |
＿＿＿＿＿ it rain tomorrow, we would have to put off the visit to the Yangpu Bridge.
| A．Were | B．Should | C．Would | D．Will |
He broke his legs while ＿＿＿＿＿.
| A．riding | B．ride | C．was riding | D．rode |