It was in the lab, _______ was taken charge of by Mrs Smith, they found the missing necklace.

The lady in this photo __ be over fifty! She looks so young!

Tom often goes to the beach on vacation,_____­­­­­____？

GarterDruse ______ his being selected for the important task to his courage，devotion and knowledge of thearea.

MacDonald who had spent much of his time_____ graduating from college backpacking round Europe,decided last year to settle down[ ]