1 . — ________ new products have been successfully made in the factory.

A．A great deal of

B．A number of

C．The number of

D．A plenty of

2 . 有了全面二孩政策,我们学校的那对年轻夫妇计划再生一个孩子(two) (根据所给汉语和提示词完成句子)
Because of the universal two-child policy, the young couple in our school plan to have __________ child.

3 . _________people prefer HUAWEI phones, and about _______of them are adults.

A．The number of; four-fifths	B．A number of; four-fifth
C．A number of; four-fifths	D．The number of; four-five