_______ free breakfasts ________ in all schools in China?
| A．Are; made | B．Do; serve | C．Are; served | D．Do; make |
—Why should we plant more trees?
—Many trees can provide us________food and homes________animals．
| A．with；for |
| B．for；with |
| C．with；with |
| D．for；for |
The story is so strange that we have never________it before．
| A．heard from |
| B．heard of |
| C．heard |
| D．listened to |
—What are they doing?
—They________helping an old man cross the street．
| A．were seen |
| B．are seen |
| C．be seen |
| D．saw |
The little boy urged his mother________a toy truck for him．
| A．to buy |
| B．buying |
| C．buy |
| D．buys |
I’m looking for a place________trees grow in water．
| A．that |
| B．which |
| C．what |
| D．where |