Victor can play ________ piano．He can join the music club．
A．a
B．an
C．the
－Can I join Oxfam Trailwalker?
－Only if you are ________ eighteen.
| A．over | B．on | C．under | D．below |
－Must we leave now?
－No, we ________. We still have two more hours.
| A．can’t | B．mustn’t | C．needn’t | D．shouldn’t |
－What’s your plan for this weekend?
－I’m going to ________ it with my grandparents.
| A．cost | B．spend | C．give | D．pay |
－Do you know _______ World Water Day is?
－On March 22nd.
| A．when | B．where | C．what | D．which |
Mr Wang has worked as _______ English teacher for more than 10 years.
| A．/ | B．a | C．an | D．the |