1	Tā huàn duōshao qián?	他/她換多少錢？	How much money is he/she changing?	want	Tā yào huàn duōshao qián?	他/她要換多少錢？	How much money does he want to change?	3	5	FSI-Chinese
2.	Tā huàn yìbǎikuài Měijīn.	他/她換一百塊美金。	He/she is changing one hundred U.S. dollars.	did	Tā huànle yìbǎikuài Měijīn.	他/她換了一百塊美金。	He changed one hundred U.S. dollars. 	3	5	FSI-Chinese
3.	Tā huàn yìbǎikuài Měijin.	他/她換一百塊美金。	He/she is changing one hundred U.S. dollars.	has done so far	Tā huànle yìbǎikuài Měijīn le.	他/她換了一百塊美金了。	He has changed one hundred U.S. dollars so far.	3	5	FSI-Chinese
4.	Tā huàn duōshao qián?	他/她換多少錢？	How much money is he/she changing?	did	Tā huànle duōshao qián?	他/她換了多少錢？	How much money did he/she change?	3	5	FSI-Chinese
5.	Tā huàn wǔshikuài Měijīn.	他/她換五十塊美金。	He/she is changing 50 U.S. dollars.	want	Tā yào huàn wǔshikuài Měijīn.	他/她要換五十塊美金。	He/she want to change 50 U.S. dollars.	3	5	FSI-Chinese
6.	Tā huàn sìshikuài Mēijīn.	他/她換四十快美金。	He/she is changing 40 U.S. dollars.	did	Tā huànle sìshikuài Měijīn.	他/她換了四十快美金。	He/she changed 40 dollars.	3	5	FSI-Chinese
7.	Tā huàn Měijīn.	他/她換美金。	He/she is changing U.S. currency.	has done so far	Tā huànle Měijīn le.	他/她換了美金了。	He/she has change U.S. currency so far.	3	5	FSI-Chinese