I promised to get there before 5 o’clock,  but now the rain is pouring down. They _______ for me impatiently.

1. A.
   may wait
2. B.
   ought to wait
3. C.
   could wait
4. D.
   must be waiting

I promised to get there before 5 o’clock, but now the rain is pouring down. They ______ for me impatiently.

A. may wait       B. ought to wait       C. could wait       D. must be waiting

I promised to get there before 5 o’clock,  but now the rain is pouring down. They _______ for me impatiently.

 I promised to get there before 5 o’clock,  but now the rain is pouring down. They _______ for me impatiently.

A．may wait                              B．ought to wait

C．could wait                             D．must be waiting

I promised to get there before 5 o’clock, but now the rain is pouring down. They _______ for me impatiently.