The boy ought to have gone to school （), but he slept （) noon.

A.ought to have not scolded

B.ought to have scolded

C.ought not to have s

D.ought to not have scolded

It ______ last night, for the ground is wet.

A、must rain

B、must be going to rain

C、must have rained

D、ought to rain

A.ought to be not allowed

B.ought to be allowed not

C.ought not to be allowed

D.ought to be allowed to not

A. You ________ it up in the dictionary.

B. ought to look

C. ought to have looked

D. ought have looked

E. ought look

You ought to drive very cautiously on such a ______ day. (fog)

—He hasn't gone to the office up to now.

—Well, he ______.

A) should B) ought to

C) ought to go D) ought to have

A.used

B. need

C. ought

D. dear

A.uy

B.uys

C.to buy

D.ought

A.应当

B.起源

C.曾经

D.货物