. — Why was Professor Johnson unhappy th
题型:选择题
问题:
. — Why was Professor Johnson unhappy those days?
— The only reason was ________the theory he stick to ____ wrong.
A.that; proving
B.why; being proved
C.that; proved
D.why; was proved
. — Why was Professor Johnson unhappy those days?
— The only reason was ________the theory he stick to ____ wrong.
A.that; proving
B.why; being proved
C.that; proved
D.why; was proved