The kid is doing his lessons ________ in order to pass the test．（ ）
A．wildlyB．carefullyC．lazily
Friends often help us， especially during the hard time． So we should ________ them for their support． （ ）
| A． |
be sorry for |
B． |
be thankful to |
C． |
be interested in |
This year marks Earth Day's 50th birthday． It was created to remind people to ________ the earth﹣the home to all the living things．（ ）
| A． |
talk about |
B． |
care about |
C． |
hear about |
As students， we're supposed to go to the museum often． We can get more knowledge from the things ________． （ ）
| A． |
on show |
B． |
on sale |
C． |
on lane |
You can bravely tell others what you think if you have different ideas．But ________ remember to choose the proper way．（ ）
| A． |
never |
B． |
seldom |
C． |
always |
Swimming is， of course， interesting．But ________ we plan to go swimming， being safe must come first． （ ）
| A． |
though |
B． |
when |
C． |
unless |