In the old days, people lived in caves and they had to make a fire ________

In the old days, people lived in caves and they had to make a fire _________themselves warm.

#50642

to keep

keeping

keep

kept

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There is a backpack _________ on the floor.

#50408

lying

lies

lie

to lie

The teachers often tell their pupils _____   across the road when the traffic light is red.

#48725

don’t go

not go

not to go

didn’t go

 Michael learned       basketball     his father.

#49731

playing; from

to play; from

playing; with

to play; with

 How much time did you spend ________ a bargain?

#51388

look for

looking for

to look for

looked for

Miss Wang asks the students          in the river, because it’s too dangerous.

#48696

swim

to swim

not to swim

to not swim

共1553题