Imagine how excited we werethat our daughter had been employed by the well-known company.A

问题补充：

Imagine how excited we werethat our daughter had been employed by the well-known company.

A. learning

B. to learn

C. having learned

D. to be learning

答案：

A. learning

(答案→)B. to learn

C. having learned

D. to be learning

解析：“be + to do”表示“应该做（某事）”，故选B。