Weneedtogettotherootoftheprobl

We need to get to the root of the problem______ we can solve it.

A．while

B．after

C．before

D．as

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58. Don’t worry about him. He is _____ a child and he is able to look after himself.

A．no longer

B．any longer

C．no more

D．any more

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55. The rock is _____ two hundred _____, and almost no one can move it.

A．nearly; kilograms	B．mostly; kilograms
C．mostly; kilogram	D．nearly; kilogram

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54. It's very cold outside. You should put on more clothing to ______, otherwise you will catch bad cold.

A．keep it out

B．make it out

C．keep out it

D．keep off it

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53. I’m afraid I can’t keep _______ my classmates as I’ve missed so many lessons. I have to ask my teacher for help.

A．up

B．with

C．up with

D．on with

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52. _____ I went to the hospital to see Jack, who had _____ had an operation.

A．Just now; just now

B．Just now; just

C．Just; just

D．Just; Just now

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