The engineer ______ my father works is about 50 years old.
D
withwhom引导定语从句.withwhom放在从句中即为:myfatherworkswiththeengineer
Lying under the skull, the human brain contains an average of ten billion nerve cells called ______.
By "language acquisition is primarily the acquistion of the grammatical system of language", linguists mean that ______.
Alinguistictheoryisconstructedaboutwhat______isandhowitworks.
Idon’tmind_______thedecisionaslongasitisnottoolate.