Tom__look after his mother.She has been ill these days A.have to B.has to C.had to D.will have to
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Tom__lookafterhismother.ShehasbeenillthesedaysA.havetoB.hastoC.hadtoD.willhavetoTom__lookafterhismot
Tom__look after his mother.She has been ill these days A.have to B.has to C.had to D.will have to
Tom__look after his mother.She has been ill these days A.have to B.has to C.had to D.will have to
Tom__look after his mother.She has been ill these days A.have to B.has to C.had to D.will have to
选B.
Tom是第三人称单数,所以选择has to（不得不）.此句句意：Tom不得不照顾他的妈妈,（因为）她的妈妈（这几天）病了.
B.has to
第三人称单数，一般现在时即可
B，第三人称单数，has been ill 说明一直在生病直到现在，用C说明这些事都过去了
选B。Tom是第三人称单数，把have to排除，又因为She has been ill these days是现在完成时，所以应该选择has to.
B.Tom 是第三人称单数，而have的第三人称单数是has.
Tom__look after his mother.She has been ill these days A.have to B.has to C.had to D.will have to
His h___beats fast after running
His mother looks after his sister at home（ ）（ ）after his sister at home?
He often ( ) his dog ( ) ( )( ) after supper.
Jim often --his homework after school
he______(not do)his homework after dinner.
His job is ( )(look)after the baby
Doesn't he take after his father!
Jihn likes ()with his friends after school.
Yesaterday,after school she ( ) ( ) with his English.
After school Tony often______on his computer.
He was named after his father是什么意思
They made his face after the dog.
He was _____ after his running.(sweater)
His jop is ______ after his little brother.
His mother looks after his sister at home怎么提问
peter often walks his dog after dinner 同义句 peter often () his dog ()()after dinner
The boy was looked after by his uncle after his parents()(dead)