I make most of my money by writing books but I do __________ magazines sometimes.
| A．refer to | B．see to | C．contribute to | D．add to |
____ total of 3,650 children were diagnosed as being sick after drinking baby milk with______ chemical melamine.( 三聚氰胺)
A The, ∕ B A, ∕ C A,a D The, a
Wouldn’t it be____ wonderful world if all nations lived in _____ peace with one another.
A a, ∕ B the, ∕ C a, the D the, the
I often have conversations with John over_____ telephone, while keep in touch with Tom by_____ letter.
A∕ , the B∕ , a C the, ∕ D the, a
Nowadays it is difficult for people to find______ work in Europe because_____ economic situation is very serious.
A , an B∕ , the C the, the D a, ∕
He was once turned down by a primary school for lack of ____ practical teaching experience. But now he has turned out to be one of ____ best teachers in the city.
A a, a B ∕, the C the, the D a, the