The girl often helps her best friend, ______ is not good at English.
| A．which | B．who | C．what | D．where |
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 |
Can $ 500 _________ the cost of the whole trip?
| A．contain | B．cover | C．include | D．afford |
What he said is not to the point _____ we should focus on constructing a harmonious society.
| A．that | B．which | C．where | D．if |