1. We often go to the Children's Palace _______Sunday.
A. on B. at C. in D. for
2. iPhone 4 has become _______popular that the young are looking forward to it.
A. such B. very C. as D. so
3. - How long _______you _______in the country with your grandparents, Henry?
- About four weeks. I'll return as soon as school starts.
A. did; stay B. will; stay C. do; stay D. was; staying
4. There are two roads that lead to the new airport. You can take _______of them.
A. either B. both C. neither D. all
5. - Bob, how about having a picnic this weekend?