So the U.S. Surgeon General has suggested that e-cigarettes may be a useful toolfor adults trying (try) to end their tobacco use,or quit.为什么空格部分不能用不定式to try?（空格部分为 trying）
...ght someday be lost to rising seas, they asked the intergovernmental panel for further study of a lower threshold.这些岛国害怕自身有朝一日会因海平面上升而被淹没，因此请求联合国气候变化政府间专门委员会进一步研究出全球气温上升的更低限度。语...
...处则更好。附考题原文：The goal of this
book is to make the case for digital minimalism, including a detailed
exploration of what it asks and why it works, and then to teach you how to
adopt this philosophy if you decide it’s right for you. To do so, I
divided the book into two parts. In...
The following browsers are supported for use with mashuphub.It helps to create a separate user for use with the connector.介词后面不应该是动名词吗，为什么这两个句子for后面的use都不加ing?
my friend advised me to look on the internet for a running programme to help me learn how to run.这句话里to help me learn how to run是不定式作后置定语修饰programme,还是作目的状语，作状语的话逻辑主语是my friend还是me
...echnique and molding themselves into two potential fighting units per club forthe 2007 Boat Race. One set will be in the Blue Boat for each club and one set will race as reserves in Isis, for Oxford, and Goldie, for Cambridge.
Democrats in the House of Represenatives have been pushing for vice-President Mike Penceto invoke the 25th Amendment against President Trump.为什么是push for sb to do sth, 而不是push sb to do sth 呢？
...则我们就不举行野餐了。There
was an attempt to sign up more men forthe police force, but not many signed
up. 警方本来准备雇用更多的人，但是报名参加的人不多。(2)
sign up for sthHe signed up for a driving course. 他报名参加驾驶课程。She's decided to sign up...
...t. He
suggested I think about the difference between endings that I wanted forthe
characters and endings that were right forthe characters, endings that
satisfied the story even if they didn't have a traditionally positive outcome.
Of course, I would have preferred a different ending for Tom and M...
...ome cities are hard on their residents. In places with poor city planning, for example Lagos, which was called out recently by the Economist Intelligence Unit, public spaces are few, making outdoor activities hard. Lack of infrastructure blocks the streets with cars and the air with pollutants,...
...卷1的语法填空题：While there are
amazing stories of instant transformation, for
most of the changes are gradual and require a lot of effort and work, like cleaning up a polluted river. 请问老师：1 连词while在句子中表示“虽然，尽管”的意思吗？2 后面的for这里完...
...emberships.* The processing fees for student, adult, senior citizen and family memberships are $10, $35, $25, and $40 respectively.* Membership includes unlimited use of the spa. gym Olympic-size...
... 一些；许多They have
trained a number of young technicians for our factory.他们为我厂再培训了一些年轻的技术员。2.according to 根据……所说；按照But,
these sites are not without ...
...说，终止性动词不能与时间段连用。如不能说：He has left for a month.（误）I bought the bike for a year.（误）He has returned from the US for a year.（误）但是，有人说下面这个句子是对的：He has come for week. 他来了，准备待上一周。那么问题来...