With the development of high technology, more and more new things _____

With the development of high technology, more and more new things ______ in the past years.

#100055

discovered

have discovered

had been discovered

have been discovered

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Whatever you have found，you should give it back to whomever it ________.

#99423

is belonged to

is belonging to

belonged to

belongs to

 Customers are asked to make sure that they______ the right change (零钱) before leaving the shop.

#103123

will give

will be given

have given

have been given

---Hurry, John!---Oh, damn! Both my legs are nearly to give out. I ____for hours.

#101892

had walked

walked

have been walking

am walking

 They say in many western countries a large number of beef cattle ________.

#103688

are raised

is raised

is risen

rise

Traffic conditions in Beijing ________ for decades. At first people only complained about jams during rush hours，but today every hour is rush hour.

#101332

is worsening

have worsened

worsened

have been worsening

共5993题