Ipreferthisdiagram________thatone.
A、thanOnly when you have obtained sufficient data ________ come to a sound conclusion.
How long ________ they ________ (dig) the ditch?
Ihavebeenstudyinghereforfouryears,bynextsummerI________.
Hot metal ________ as it grows cooler.
I know it isn ’t important but I can ’t help ________ about it.
