16.—Where is Lily, Lucy? I cannot find her anywhere. —She_________have been off long. I saw her clean the window just now.
.—Who did you spend last weekend with? —________.
.—Mike, what did our monitor say just now? —Every boy and every girl as well as teachers who________to visit the museum asked to be at the school gate before 6:30 in the morning.
..—Can those ________at the back of the classroom hear me? —No problem.
.Animals suffered at the hands of man________they were destroyed by people to make way for agricultural land to provide food for more people.
.Ten minutes earlier________we could have avoided the accident.