— Do you know __________ they got to know each other?

    — It was last year ________ they both taught English in China.

A． when was it that; when    B． when it was that; that

C． when it was that; when    D． when was it that; that

— It’s no easy task to catch a ticket on a website that receives 1 billion clicks daily.

—I can’t agree with you more. There ________ be errors for every single step.

A．should  B．must   C．will  D．can

—I wonder what makes you a successful manager.

—I ________ as a waiter for five years，which contributes a lot to my today’s work.

A．serve  B．have served    C．had served  D．served

----What’s that noise?

  ---- There’s a truck stopping outside．It’s someone        something.

A．deliver    B．to deliver    C．delivering   D．delivered

After the trainer was sure that the whale could look after itself, he _______ it into the sea.

A. transported    B. delivered    C. released    D. handled

The course about Chinese food attracts over 100 students per year, _______ up to half are from overseas.

A． in which    B．of whom          C． with which  D． for whom

Too often we underestimate the power of a touch, a smile, a kind word, or the smallest act of caring, all of which have the potential to _______ a life _______.

A. get… up   B. take… off    C. bring… up    D. turn… around

Besides proper diet, exercise is one of the key ___________of a healthy lifestyle.

A. components      B. categories    C. ranges        D. processes

—The two people speak different languages and can not communicate with each other well.

—Oh，I see. That’s ________ misunderstanding occurs.

A．when  B．what  C．which   D．why

________ the Hong Kong singer’s current popularity, she was largely unknown in the Chinese mainland before the talent show.

A. With      B. Despite   C. Besides     D. Beyond