--- When did you buy this computer? It looks so new．
--- I it for only a couple of days．My sister bought it for me as a birthday present．
| A．bought | B．have bought |
| C．have had | D．had |
-----_______do you take the medicine?
-----Three times a day.
A.How long B.How far C.How often
_____for a long time is bad for your eyes.
A.Reading B.Read C.Playing football
-----___________________.
-----Much better.Thank you.
A.How are you feeling today？
B.What happened to you?
C.What can I do for you?
While she was trying to cross the road,she saw a red car_____.
A.come B.to come C.coming
---I don’t know much about computer.
---I don’t know,____.Let’s go and ask for help.
A.also B.either C.too