The math problem is so hard. I really don’t know .
| A．how to do it | B．how to do | C．what to do it | D．where to do it |
—are you going to London?
—By plane.
| A．How | B．When | C．Why | D．Where |
All the living thingson the sun.
| A．depend | B．spend | C．look | D．go |
It’s important ______ us ________ some good books.
| A．for, read | B．to, to read | C．to, reading | D．for, to read |
Staying up late is _______ your health.
| A．bad for | B．good to | C．bad to | D．good for |
You’d better ________ too much meat. You are too fat.
| A．eat | B．not eat | C．not to eat | D．don’t eat |