when C. which D. what
13.It is still under discussion __________the old bus station should be replaced with a modern hotel or not.
A. whether B. when C. which D. where 14. It is not always easy for the public to see _______ use a new invention can be of to human life.
A. whose B. what C. which D. that
答案 1-5 DCDCA 6-10 CDCDD 11-14 CDAB
1. We haven't settled the question of _________ it is necessary for him to study abroad.
A. if B. where C. whether D. that
2. ________ makes this shop different is that it offers more personal services.
A. What B. Who C. Whatever D. Whoever
3. See the flags on top of the building? That was _______ we did this morning.
A. when B. which C. where D. what
4. Please remind me _______ he said he was going. I may be in time to see him off.