_____ the many hours of study that he devoted to the subject, he still found the subject

A.aside

B.off

C.out

D.on

A.endings

B.hours

C.returns

D.accidents

一________________will the meal take？

一It'll take two hours，I think.

A. How many

B. How much

C. How long

A. going

B. combing

C. breaking

D. seeing

A.work

B.have been working

C.are working

D.have had worked

A、rush hours

B、rushing hours

C、running hours

D、busy hours

A) off time B) on time C) ahead of schedule D) behind schedule

A: () will the meal take？ B:It'll take two hours, I think.

A. How long

B. How many

C. How much

A、spend for

B、adjust to

C、apply to

D、devote to