6.You _____ pay too much attention to your reading and listening skill, for they are of great importance.
Little Tom was so enthusiastic about learning Chinese and after six months, he could speak it ______ fluently.
This is a complex operation. A team of nurses _____ the doctor in performing the operation.
The conflict between economic development and environmental protection, if not appropriately _________, can cause disastrous consequences in daily life settings.
People are always coming in here borrowing my hammer, you know, to fix a cart wheel or ______.
The WHO ________ eat less bacon and other preserved meat because they can cause cancer.