-- May I smoke here?
-- If you____, that's the smoking section over there.
| A．should | B．could | C．may | D．must |
Chongqing is among the most important cities in China ______ its size and population.
| A． in favor of | B． in honor of | C． in view of | D． in terms of |
______ to their own work, most of the parents spend little time with their children.
| A． Devoting | B． To be devoted | C． Having devoted | D． Devoted |
What a pity! I ______ in Hainan two more days, but something urgent needed to be dealt with back home.
| A． must have stayed | B． needn’t have stayed |
| C． may have stayed | D． could have stayed |
Tom, Jack and Rose were named as assistant professors. Believe it or not, ______ three of them were of ______ age.
| A．不填; an | B．不填; the | C． the; an | D． the; the |
--- Whom shall I give the document?
--- To ______ is in the office. However, ______ to require a written paper for it.
| A． whom; make sure | B． who; make sure |
| C． whomever; be sure | D． whoever; be sure |