He was working ________ his maths problems when I entered.

[　　]

A. out　　　B. on　　　C. at　　　D. for

Do you have ________ out this maths problem?

[　　]

A. difficulty to work　　　B. difficulty in working

C. trouble to work　　　　 D. trouble for working

________ offered a wide choice of products in supermarkets. Which of the following is wrong?

[　　]

A. The consumer is　　　B. Consumers are

C. Consumer is　　　　　D. A consumer is

If a businessman is dishonest, sooner or later he will ________ business.

[　　]

A. be taken from　　　　　B. be driven out from

C. be driven out of　　　 D. drive out of

The number of high buildings in Shanghai ________ in recent years.

[　　]

A. has increased　　　B. is increasing

C. increased　　　　　D. has been increasing

The ground is wet ________ it rained last night.

[　　]

A. for　　　B. because　　　C. so　　　D. though

If you want to succeed, you have to ________ yourself.

[　　]

A. place hopes on　　　B. give hopes to

C. carry hopes to　　　D. put an hope on

Xian Ming offered ________ an old man his seat on the bus.

[　　]

A. /　　　B. to　　　C. for　　　D. himself

─shall we meet at the gate of the theatre tomorrow?

─Good. Let's ________ it two o'clock in the afternoon.

[　　]

A. decide　　　B. make　　　C. take　　　D. get

We hope that he will be well again soon. The underlined word means _______.

[　　]

A. healthy　　　B. good　　　C. nice　　　D. kind