--- How can I use iPhone 4s?

--- Just refer to the _________.

A. explanations     B.expressions     C. directions      D. Preparations

My chest _______ when I make a deep breath, doctor.

A. harms          B. hurts          C. wounds         D. injures

--- Do you mind if I record your lecture?

--- ________. Go ahead.

A. Never mind                      B. No way

C. Not at all                        D. No. You’d better not

________ at the party, I found Tina seated alone in the front row.

A. Arriving         B. To arrive       C. Arrive        D. Arrived

--- Hi Mike, are you busy now?

--- Not really. I _____ my work, and I’m going to see a movie online.

A. did         B. have been doing

C. had done       D. have done

No pleasure can equal ______ of having a good sleep after hard work.

A. that         B. one              C. it           D. those

The weather in Inner Mongolia is always dry, but sometimes it _____ rain heavily.

A. need         B. can           C. must          D. shall

We admire this family, ______ the parents treat their child like a friend.

A. why         B. which         C. where         D. that

Science has given clear evidence ______ smoking can lead to many diseases.

A. what         B. which         C. that           D. where

--- It’s the fourth time that heavy smog(雾霾) has hit the city this month.

--- It’s high time we _______ measures to fight air pollution.

A. will take       B. took            C. to take        D. taking