1 . 电子烟一上市，那些忧心忡忡的评论家就警告说因为人们没法抵挡要去抽烟的冲动，因此电子烟绝不可能替代香烟。(Hardly...; replace) （汉译英）

2 . As we are at the start of the course, this seems a perfect moment to offer some practical advice to ________ (facility) the task of learning English. （所给单词适当形式填空）

3 . Researchers from Brigham Young University discovered that fathers are in a unique position _____ (help) their adolescent children learn persistence. （用所给单词适当形式填空）

4 . --Mark, I failed in the exam again, I’m so upset.
--Don’t worry, I think the first thing ______ is ______ your weak points.

A．to do, find out	B．being done, to find out
C．to do, to hold out	D．being done, hold out

5 . Peter was so excited _________ he received an invitation from his friend __________Chongqing.

A．that; to visit	B．when; to visit
C．that; visiting	D．when; visiting