Some people get in touch with each other by mobile phones__________ others keep contact with each other by e-mail.
A. while B. before C .when C. since
The boy burst into tears ________ he saw his mother.
A.at the moment | B.in a moment | C.for a moment | D.the moment |
Raising environmental awareness was the aim of our art exhibition ____ last week.
A.to hold | B.held | C.having held | D.being held |
_________ he was, he still went on with his work.
A.Tired although | B.Tiring as | C.Tired though | D.While tired |
It is ten years since we ________ each other last time.
A.see | B.have seen | C.saw | D.had seen |
More wild tigers have been seen in the forest around this area, ________ there used to be very few.
A.when | B.where | C.what | D.which |