中国大学MOOC: Choose a coordinating conjunction or a subordinating conjunction to combine each pair of simple sentences.(1)The number of school bus casualty is not large.(2)The safety of children is always of intense public concern.

‏Choose a subordinating conjunction to combine each pair of simple sentences.​(1)I want to build my business through my people.​(2)I have to build their own belief in their capacity to achieve.​ A: if B: unless C: because D: as

Choose a subordinating conjunction to combine each pair of simple sentences.(1)I want to build my business through my people.(2)I have to build their own belief in their capacity to achieve. A: if B: unless C: because D: as

中国大学MOOC: Choose a coordinating conjunction or a subordinating conjunction to combine each pair of simple sentences.（1）Hotel guests have their meals free.（2）They naturally go to the free dining rooms to have their meals.

Choose a subordinating conjunction to combine each pair of simple sentences. (1)Computers work accurately and at high speeds.(2)They save research workers years of hard work. A: when B: unless C: because D: if