问题

The problem will appear____ a different welfare systemwill be created.

A:gained
B:was gaining
C:has gained
D:if

正确答案是：

同类题型

Thank you for ______ me.

When did Sam arrive _____ Tongling– the morning of November 16th .

(2013·高考北京卷)—You needn’ t take an umbrella.It isn’t going to rain.—Well，I don’t know.It________do.

Please check the list carefully ________________ make mistakes.

Is this the reasonatthe meeting for his carelessness in his work