giving a general introduction to the computer, the course also provides practical experience. [ ]

Don’t smoke here. Look at the sign please. –Sorry, I _________it.

Mom, these are my friend Peter and __brother Bill.–Welcome to our home. Come in, please. C。

The woman feels that she could let her daughter _____her own decision this time .

All the teachers should try to make students know the______ of the study. Then they’ll study hard.