It could be ________ for Jackson who seldom puts his hearts into his studies to be admitted into a key university.

Tmall.com is booming, especially during the festivals，______________ price and variety, it is superior to other online shopping sites, like amazon.com and 360buy.com

are some tall trees in our campus, some ________more than forty meters.

We__________ an old man lying in the road, who was badly ill.

Let Tom _________ now.