Cho dạng đúng của từ trong ngoặc:
1. I like learning English because it is very necessary for my study, my knowledge and _____________ opportunity. (EMPLOY)
2. ______________ in French and German is required for this job. (FLUENT)
3. Please ______________ the instructions so that the children can understand them. (SIMPLE)
4. The house was built in ________________ of a Roman villa. (IMITATE)
5. He resigned his job for a _____________ of reasons. (VARY)