------- _______ you _______ the book ______ to the library yet.
------ Yes. I have.
| A．Have ，returned，/ |
| B．Have， returned， back |
| C．Did return ，/ |
| D．Did， return，back |
We don’t look the same , _____ we are twins.
| A．so | B．though | C．and | D．because |
Yesterday I didn’t _____ any seals but _____ some dolphins.
| A．see, saw | B．see, see | C．saw , see | D．saw, saw |
Don’t ______ the TV. Grandma is sleeping now.
| A．open | B．close | C．turn on | D．turn off |
--_____ did he hiccup?
--For one hour.
| A．How long | B．How many | C．When | D．What time |
Tom _____ the sports club last summer.
| A．joined | B．took part in | C．took | D．got |