Milk quickly goes bad in summer it is in a fridge(冰箱).
| A．if | B．because | C．unless | D．when |
I have to make breakfast for five people, ______ me.
| A．among | B．against | C．including | D．beside |
— Excuse me, Miss Li. Where will you take _____ trip?
— I’ll travel to a famous island of _____ Pacific Ocean.
| A．a; / | B．a; the | C．the; / | D．the; the |
If you study hard , I’m sure you’ll get good ________.
| A．school | B．class | C．grades | D．works |
Our physics teacher told us that light ________ faster than sound.
| A．travel | B．travels | C．is travelling | D．has travelled |