【单选题】
Mary tiptoed over and took the clock away
because she hated to hear it ____ when she was
trying to go to sleep.
【单选题】
Under this ____ pressure some of the rocks
even became liquid.
【单选题】
The patient was fully ____ during the operation.
【单选题】
He might have been killed ____ the timely arrival of the ambulance.
【单选题】
You must be careful when ___ on the highway.
【单选题】
— We have to stop talking here. Listen, _____!
—Hurry up, or we’ ll be late.
【单选题】
Even if his letter ____ tomorrow, it ____ too late to do anything.
【单选题】
— The water changes into thick ice covering rivers and lakes
in winter in Harbin.
—_____ in Urumqi and children go skating on it then.
【单选题】
You’ ll have to____ your wrongdoing one day.
【单选题】
Classification is a useful ____ to the organization of knowledge in any field.