1,There are many ways to purchase goods but these days, people like____ online because it is convenient and time-saving. a. Shopping b. to shop c. being shopping d. to be shopping 2, After giving a brief introduction of his new program, the leader went on ___ its structure in more details. a. to explain b. to explaining c. be explained d. explaining 3. The Board of Directors went on ____ about the potential locations for the new oversea plant.a. Discuss b. to discuss c. discussing d. to discussing 862. The teacher recommends his students____ the public awareness to the new environment campaign. a. to include b. including c. include d. to including