Thet are playing under the tree.Let's go and ____ them.A.join in B.take part in C.join D.joining请说明为什么!感激不尽!

Thet are playing under the tree.Let's go and ____ them.A.join in B.take part in C.join D.joining请说明为什么!感激不尽! they are playing ball. In Britain,most students work ___ thet are studying.填AS还是WHILE为什么 They are playing the football还是They are playing football? The girls are playing over there 对are playing提问 The girls are playing over there.就“are playing” 提问 they are playing the baseball 还是they are playing baseball they are playing together是什么意思 The children are playing games. They ()football in the playground.a:playing.b:am playing.c:are playing.d:is playing. They are playing computer games.对playing computer games提问. There are some differencs between Tom and Jim ______ thet are twin brothers.A.though B.if C.until D.so The boys are playing basketball instead of___volleyballA.playing B.play C.playing the D.to play Look!The boys[ ]football together.A.playing B.are playing C.is playing选择 There are many people .Some are playing football .( )are playing basketball 这里填什么 Where are they playing badminton?改一般现在时 they on are games playing playground the There are many children playing soccer.