Scientists have many theories about how the universe ___ into being.

A． cameB. was coming

C． had comeD. would come

[单选题]Passage ThreeMany theories about the origin of the ocean have been proposed by scientists. The most widely accepted one is that the earth at some time in its very early history became hot enough to melt the materials from which it was formed. While i

[单选题]Many scientists _____their own eyes and ears than the theories of the ancie

[单选题]Many scientists have been probing psychological problems.A．solvingB．exploringC．settlingD．handling

[单选题]D．o scientists know how many cryptic species exist?A．Not yet.B．Yes, they do.C．They will know the answer in another one or two years.D．They will never know the answer.

[单选题]H．ow many children does the woman have?A． Two.B． Three.C． Five.

[单选题]The scientists are ____ a series of experiments to learn more about how the

[单选题]F．rom the passage, how many places have the name Valencia?A． One.B． Two.C． Three.D． Four.

[单选题]How many syllables does the word “syllable” have？A.IB.2C.3D.4

[单选题]In recent years many countries of the world have been faced with the proble

[单选题]In recent years many countries of the world have been faced with the proble