---Is your father at home?----No, he ________the USA.A. has been to B. has been inC. has gone to D. went to
Every Earth Day , We are made _____ signs to warn people to protect the nature .
— Is everything ready for the party ? — I hope there are enough glasses for each guest to have _____
We are all told to take part in the dish—eating up Campaign . So everyone should _____ the dishes they ordered .
The class teacher came up and put a jacket _____ the boy to prevent him from catching a cold .
— You aren’ t a student , are you ? — _____ , don’ t you remember _____ me in the classroom ten minutes ago .