﹣ Some Chinese government officers have turned into live streamers （网络主播）.
﹣ Yes.They are trying their best to help local farmers to _______ product sales.
| A． |
improve |
B． |
compare |
C． |
afford |
I wondered （ ）．
| A． |
where had he gone |
| B． |
where he had gone |
| C． |
where had he been |
Mr．Green is old to carry the heavy box．（ ）
| A． |
to |
B． |
very |
C． |
too |
You can ask Liu Mei with you．（ ）
| A． |
go |
B． |
to go |
C． |
going |
I will be if I get good grades this time．（ ）
| A． |
excited |
B． |
exciting |
C． |
excite |
My parents have a lot of housework ．（ ）
| A． |
do |
B． |
to do |
C． |
doing |