—We are worried about Tom. Why hasn’t he come back?
—Don’t worry. He ______ in a traffic jam.
| A．might be caught | B．may have been caught |
| C．can have been caught | D．should have been caught |
Her temperature ＿＿＿＿＿＿ to be all right.
| A．seems | B．sounds | C．appears | D．looks |
It sounds ＿＿＿＿＿ the singing of rails.
| A．as | B．in | C．like | D．as if |
It sounds ＿＿＿＿＿ the singing of rails.
| A．as | B．in | C．like | D．as if |
His mother ＿＿＿＿＿ teacher.
| A．became | B．has turned | C．came | D．proved |
Obviously, the old soldier’s knowledge of English＿＿＿very weak.
| A．seems | B．rised | C．remained | D．looked |