My friend Mary is _____ beautiful girl and _____ girl everyone likes to work with.

A．a, a                                  B．a, the

C．the, a                                D．the, the

Everyone knows that _______ is dangerous to play with fire, but _______ is difficult is to prevent children from playing with fire.

A．it, it                                  B．what, what

C．it, what                               D．what, it

The world’s elderly population will exceed(超过) ____ of children by 2060,when each group ____ to account for about one fifth of the population.

A．that; expects                           B．those ; will expect

C．that ; is expected                       D．one ; will be expected

A man with a bleeding hand hurried in and asked, “Is there a hospital around ______ I can get some medicine for my wounded hand?”

A．that                                  B．which

C．where                                D．what

Language has always been —— as the phrase goes —— the mirror to society. English is no ______

A．explanation        B．excuse            C．exception         D．expectation

I’d prefer _______ if I didn’t have to get up early on Sundays.

A．that                                  B．such

C．it                                    D．which

As it was almost time for the flight, all the passengers got ______ the plane.

A．board                                B．abroad

C．aboard                               D．broad

— A：Oh, I ______ where he lives.

—B：Don’t you carry your address book?

—A：No, I ______ to bring it.

A．forget, forget                          B．forgot, forgot

C．forget, forgot                          D．forgot, forget

 “When he _____ is not known yet.” “But when he ____, he will be warmly welcomed.”

A．comes, comes                          B．will come, will come

C．comes, will come                        D．will come, comes

When he realized the police had seen him, the man ______ the exit as quickly as possible.

A．made off                              B．made for

C．made out                             D．made up