[填空题]It has been five years since he bought the TV set.
He ______ ______ the TV set ______ five years.

[填空题]It has been five years since he bought the TV set. He______ the TV set ______five years.

[填空题]It is five years since he bought the TV set.
He _________ _________ the TV set _________ five years.

[填空题]He has been to the United States for five years and is used to (live) ______ there.

[填空题]They have (He/She has) been learning Chinese since they were 11 or younger.

[单项选择]Since 1975 there has been in the United States a dramatic decline in the incidence of traditional childhood diseases such as measles. This decline has been accompanied by an increased incidence of Peterson’s disease, a hitherto rare viral infection, among children. Few adults, however, have been affected by the disease.
Which of the following, if true, would best help to explain the increased incidence of Peterson’s disease among children ？（）
A. Hereditary factors determine in part the degree to which a person is susceptible to the virus that causes Peterson’s disease.
B. The decrease in traditional childhood diseases and the accompanying increase in Peterson’s disease have not been found in any other country.
C. Children who contract measles develop an immunity to the virus that causes Peterson’s disease.
D. Persons who did not contract measles in childhood might contract measles in adulthood, in which case the consequences of the disease would generally be more severe.
E. Those who have contracted Peterson’s disease are at increased risk of contracting chicken pox.

[单项选择]— How long has he been in the army
— Oh, he joined the army as far （） as 1997.
A. ago
B. away
C. from
D. back

[单项选择]
How many times has he been late this month
A. (A) Two.
B. (B) Three.
C. (C) Four.
D. (D) Eight.

[单项选择]Since the accident he has walked with a（）
A. slope
B. limp
C. lame
D. strain

[填空题]How long has he been working as a computer engineer

[单项选择]How long has Mr. Wang been here
A. He arrived here three hours ago.
B. He’s been here for an hour.
C. He came here half a hour ago.

[单项选择]Since ancient times it has been known that your word is a cause set in motion. In fact, the universe itself is claimed to have emanated from a single primordial sound. In the science of yoga, it is believed that certain Sanskrit words, known as mantras, can bring about magical results, thus you can secure abundance with a certain mantra, peace with another, and so on. On a more practical level, your word still remains highly potent.
With your words, you can wound someone, sending them into spirals of defeat, and with your words you can heal someone, raising them up from a dismal place to soaring hope and motivation. In fact, the entire field of self-improvement is the transmission of words that will assist others to get a firm perspective and move forward with their lives, fulfilling their dreams and desires.
On a personal level, too, your words affect you. What you say to yourself about anyone or anything affects you, too. If you speak well of someone or something, yo
A. people’s emotions are influenced by the words they say
B. people should use words with more carefulness
C. people should only accept words which are truths rather than opinions
D. what people experience directly decides what they speak