The police still haven’t found the lost child, but they’re doing all they ______.
A: can
B: may
C: must
D: should
A: can
B: may
C: must
D: should
举一反三
- You two haven’t done anything at all. You _____ be tired. A: shall not B: should not C: can’t D: must not
- 这个句子的时态是______。I have been looking for my lost book for three days, but I still haven't found it.
- —You have found your lost umbrella, haven't you? A: finds B: found C: have found D: will find
- 11. —You have found your lost umbrella, haven’t you? A: have found B: will find C: found
- The police haven’t found any ________ to the murder. A: hint B: tip C: clue D: advice