单项选择题
It （）have rained last night， for the ground is wet.
A.should B.can C.will D.must
单项选择题 Allthings（），theplannedtripwillhavetobecancelled.
单项选择题 Itisalreadyfiveo’clocknow.Don’tyouthinkit’sabouttime（）.
单项选择题 She（）beillbecauseIsawherplayingbasketballjustnow.
