If you want to borrow a football after school, your student card ___ here.
| A．has to leave | B．must leave | C．has to be left | D．must be left |
Oh, much smoke here ! Somebody _____ the window, please.
| A．opens | B．open | C．shall open | D．will open |
She looked up and nodded for me ______..
| A．to come in | B．coming in | C．came in | D．come in |
Catherine bought a postcard of the place she was visiting, addressed _______ to _______ and then posted it at the nearby post office.
| A．it; her | B．it; herself | C．herself; her | D．herself; herself |
. I love hobbies ______ you can see hard work and perseverance turn into positive results.
| A．which | B．that | C．when | D．where |
So far no life has been found outside the earth, but while some scientists are actively searching for living things in outer space, others firmly believe there ____ .
| A．mustn’t be | B．may not be | C．can’t be | D．won’t be |