Look! The children _____ in the playground happily. （ ）
| A．play | B．is playing | C．are playing |
She’s ______exercise, but it ______ too hot. ( )
| A．do get | B．doing getting | C．doing gets |
He’s riding his bike, but it’s ________to rain. ( )
| A．starting | B．start | C．starts |
Mum is at the supermarket. She’s______ things for your birthday party. ( )
| A．buy | B．buying | C．bought |
Listen! The birds ________ in the trees. ( )
| A．sings | B．sang | C．are singing |