All her time________ experiments, she has no time for films.
| A．devoted to do | B．devoted to doing |
| C．devoting to doing | D．is devoted to doing |
Martin Smith who, at 22, is one of the male nannies(保姆) admits that it will be some time ____ male nannies are totally accepted.
| A．since | B．until | C．before | D．after |
—Look! How long ______ like this?
—More than 20 days! It’s usual here that rain pours without stopping in May.
| A．did it rain | B．is it raining |
| C．has it been raining | D．doesn’t rain |
The man tried out several means to have those people ______ what he said.
| A．carry on | B．break out | C．stand by | D．get across |
Facts prove that the world’s economic development is not a win-lose game but one in which all _____ be winners.
| A．can | B．shall | C．must | D．would |
David apologized for _______ to inform me of the change in the plan.
| A．his being not able | B．him not to be able |
| C．his not being able | D．him to be not able |