---Sorry, I don’t know what the teacher said just now.
----He asked Maria ________.
| A．how long she usually spends on her homework |
| B．what she was doing these days |
| C．why didn’t Mike come to the meeting yesterday |
| D．when the speech will begin |
To live on Mars, you need to wear boots which ________ to prevent you from floating off into space.
| A．design | B．designed |
| C．are designing | D．are designed |
Of all the movies, Birdman got the awards at the 87th annual Academy Awards ceremony.
| A．more | B．many | C．some | D．most |
Taobao, China’s biggest online shopping platform, _______ the ways Chinese people shop and live.
| A．changes | B．changed |
| C．has changed | D．was changing |
—We will carry out the survey as we planned it rains tomorrow.
—You needn’t worry about the weather. It’s sunny tomorrow.
| A．until | B．unless |
| C．if | D．when |
“One Belt, One Road” (一带一路) will serve to ______ markets for China as well as other countries along.
| A．put up | B．open up |
| C．take up | D．look up |