He ________this new computer since last week. It is birthday present.
(贵州贵阳)In China and some other countries,it is impolite to speak loudly________you are having a meal. A.before B.while C.after
-Do you________your son after school? -No.He comes back home on the school bus.
The thieves ran away when the burglar alarm(防盗警报器)________.
Little Tom________computer games when his mother got home. A.is playing B.plays C.was playing
—Why are you so tired these days? —Well,I have________homework to do.