He sighed again and the failure in physics seemed to have completely ______ his confidence.
| A．damaged | B．attacked | C．shocked | D．struck |
You ______ the examination again since you had already passed it.
a. needn’t have taken b. didn’t need to take c. needn’t take d. mustn’t take
“I wonder why they’re late.” “They ______ the train.”
a. can have missed b. could miss c. may have missed d. might miss
The elephants ought ______ hours ago by the keepers.
a. to be fed b. to feed c. to being fed d. to have been fed
You ______ last week if you were really serious about your work.
a. ought to come b. ought to be coming c. ought have come d. ought to have come
.The students in the classroom ______ not to make so much noise.
a. need b. ought c. must d. dare