Modal verbs352 Select the most appropriate expression of obligation or prohibition from the
following list to complete each sentence.
ᓊ䈛/䂨 yqnggoi, ᓊᖉ/⮬ yqngdong, ᗍ dui, ᗻᗍ bìdui,
ᗻ亱/ᗻ举 bìxs, уᓊ䈛/у䂨 bù yqnggoi, уᗻ bù bì, у䇮/у䁧 bù xx
a. ֖ԢԀཟᲐр ____ ֒ࣕ䈴Ⱦ
ԀཟᲐрه֖ ____ ֒ࣕ䃨Ⱦ
Nhmen jcntian wfnshang ____ zuò gdngkè.
You don’t have to do homework tonight.
b. ֖ ____ ∅ཟᲐрޡѠቅᰬⲺ㿿Ⱦ
֖ ____ ∅ཟᲐрفޡቅᱸⲺ㿰Ⱦ
Nh ____ mgitian wfnshang shuì ba gè xifoshí de jiào.
You should sleep for eight hours every night.
c. ֖ ____ 䗯ਹђ㾵䗯䈪䈓Ⱦ
֖ ____ 䛀ਹᶧ㾵䛀䃠䂧Ⱦ
Nh ____ bian chc ddngxi bian shud huà.
You shouldn’t talk while eating.
d. ֖ ____ ޡᴾӂॷᰛԛࢃԎᆜ䍯Ⱦ
֖ ____ ޡᴾӂॷᰛԛࢃԎᆮ䋱Ⱦ
Nh ____ bayuè èrshí rì yhqián fù xuéfèi.
You have to pay tuition by August 20th.
e. ֖ ____ 傢рഔᇬȾ
֖ ____ 俢рഔᇬȾ
Nh ____ mfshàng huí jia.
You must go home immediately.
f. ֖ ____ ⵁ䛙ᵢҜȾ
֖ ____ ⵁ䛙ᵢᴮȾ
Nh ____ kàn nà bgn she.
You don’t have to read that book.
g. ֖ ____ 䖜Ⱦڒݵ൞䘏
֖ ____ 䔀Ⱦڒވ൞䙏
Nh ____ zài zhèr tíng chb.
You can’t park here.
h. ൞侣侼 ____ ᣳ✕Ⱦ
൞伥佞 ____ ᣳ➏Ⱦ
Zài fàngufn ____ chdu yan.
Smoking is not permitted in restaurants.
➪ 12.4, 12.5