-QQ, as a means of communication, is quite popular among us and costs less than the traditional forms.--______________.So is WeChat B. So it is WeChatC. So does WeChat D. So WeChat is
Though _______ money, his parents managed to send him to university.
When I opened the door, I found my father sitting in his chair, completely _______ a magazine.
John rushed out in a hurry, _________ the door _________.
A quarrel _____ last Sunday, and he _____ his family.
Most of the factories under ___________ have been designed by Chinese engineers.