Science is really _______ useful sucject although it is very difficult.
| A．an | B．a | C．the | D．/ |
It’s a little hot today.You don’t need ___such thick clothes.
| A．wear | B．to wear | C．wearing | D．to be worn |
—Excuse me, could you please tell me ___?
—Sorry. But the bus stop is over there. You can go and check the bus lines.
| A．which bus goes to the Sea Park |
| B．where the bus stop is |
| C．when I can get to the Sea Park |
| D．how I can get to the bus stop |
Our physics teacher told us that the light ___faster than the sound.
| A．traveled | B．travel | C．travels | D．traveling |
As students ,we don’t have to spend a lot of money ___presents for our parents.
| A．buying | B．to buy | C．buy | D．in buy |
He promised___his old friend during his stay in Tianjin.
| A．see | B．seeing | C．saw | D．to see |