1.答案:C
从答句中的computer可以看出,是用电子邮件(email)发的.
2.D
unless=if...not...如果不/除非
即:Susan will not arrive at the airport on time unless she hurries up.
=Susan will not arrive at the airport on time if she doesn't hurry up.
翻译:如果Susan不快点的话,她就不能准时赶到机场.
1.答案:C
从答句中的computer可以看出,是用电子邮件(email)发的.
2.D
unless=if...not...如果不/除非
即:Susan will not arrive at the airport on time unless she hurries up.
=Susan will not arrive at the airport on time if she doesn't hurry up.
翻译:如果Susan不快点的话,她就不能准时赶到机场.