A．has used toB．used toC．is used toD．uses toMy grandmoth……

单项选择题Manufacturing companies spend millions of pounds trying to convince customers that their products are ______ to those of others.

单项选择题So little ______ about physics that the lecture was completely beyond me.

单项选择题It is ______ he is determined.

单项选择题My parents want me to be the best at anything, but I don't have such high ______.

单项选择题He was ______ admission of the restaurant for not wearing a tie.