2014߿ӢZ(y)Z(y)֪R(sh)c(din)w{(3)
̓MZ(y)B(ti)(dng)~
—David, we went to Lake Geneva for the weekend.
—That _______ a very nice change. I wish I had gone there.
A. must be B. must have been C. could be D. could have been
_𰸡B
߿c(din)B(ti)(dng)~
AB涼mustmustƜy(c)ʾ“϶…”@(g)Z(y)Ƿdz_ģٷ֮ٵ;ô(dng)mustƜy(c)ĕr(sh)߀Աʾͬĕr(sh)g磺
һmust beʾ“F(xin)ڵĠB(ti)”He must be a teacher. ϶һ(g)ώ
ڶmust be doingʾ“F(xin)M(jn)еĄ(dng)”They must be having a meeting in the office.F(xin)ڿ϶k_(ki)(hu)
must have doneʾ“^(gu)ȥl(f)”You must have met him yesterday.϶Ҋ(jin)^(gu)҂һ“must have been”}Ƿ_?⣺“David,҂ĩȥՃ(ni)ߺ”“Ŷǿ϶һ(g)dzõĸ׃ϣҲȥ”@DZʾһ(g)϶Ɯy(c);?yn)ς(g)ĩf(shu)@ѽ(jng)l(f)ˣ҂B. must have been,A
Ԕ(x)Cx(xing)couldpđɻί“”e.g. His story could be true, but I hardly think it is.f(shu)@(g)¿һϲ
Dx(xing)could have done̓MZ(y)ij^(gu)ȥпܰl(f)(sh)H](mi)“(li)”ʾϧze.g. The accident could have been prevented.@(g)܇(ch)ԭǿԱe.g. You could have done better, but you didn’t try your best.ԭǿĸõ㲢](mi)бMԼŬ
(؟(z)ξR)
2014߿ӢZ(y)Z(y)֪R(sh)c(din)w{(3)