Yao Ming is generally ________ as the best basketball player in the world.
| A．substituted | B．acknowledged | C．contradicted | D．recommended |
He was busy preparing a speech , only _______ once in a while to rise from the table for a tea .
| A．stopping | B．to stop | C．to have stopped | D．having stopped |
Mr. Duncan raised an unnecessary question _______ he then failed to find an answer.
| A．with which | B．for which | C．to which | D．by which |
I don't like to go swimming with my class even though I like to swim because I am so embarrassed _______ in my bathing suit.
| A．to see | B．to be seen | C．Seeing | D．seen |
It is usually not quite cold in this area in March, but sometimes the temperature ______be very low.
| A．can | B．should | C．must | D．shall |
Welcome to the Historical Museum, everyone! This stone knife _______ in South Africa and experts can’t be exactly sure about its use.
| A．had been found | B．was found | C．has been found | D．would be found |