English is difficult________. Nobody can learn to use it in a few minutes.
A.learning | B.to be learned | C.learned | D.to learn |
My parents would have come to see you if it had been possible, but they ________ so busy.
A.were | B.had been | C.have been | D.would be |
Mary is a(n) _______ customer, so the waiter knows her likes and dislikes.
A.usual | B.ordinary | C.common | D.regular |
Recently I bought a ticket for Shanghai World Expo, _______ was very reasonable.
A.the price of it | B.whose price | C.the price of whose | D.the price |
—I’d like to call you at 10 o’clock next Friday morning if it is convenient.
—I’m afraid I _______ an important meeting.
A.will have attended | B.will be attending | C.will attend | D.would attend |
What some teenagers don’t realize is ____ difficult life can be if they get addicted to drugs.
A.how | B.what | C.that | D.why |