"He caught a cold last week."

Translation: 上星期他感冒了。

[darlson]

It's probably a programming error that "他 上星期 感冒 了“ is wrong?

[Amy914873]

Same question

[deactivated user]

We shall see. Reported.

[Tommy556270]

Native chinese here. It is absolutely fine and is accepted now. Verified on 11/4/2020

[xialuote1]

Same here

[DestinationVoid]

Reported again

[DestinationVoid]

And again...
2019-01-07

[RossWS]

And again 2019-01-11/01-16

[ImportantHunter]

And again 2019-01-20

[CharlesE780046]

Eight months later, reported multiple times and no action. They clearly do not have enough people to maintain the Chinese lessons.

[George418878]

I also reported it.

[victyma]

Already one year yet the answer is not accepted....

[dafadllyn]

It's accepted now (2020-02-19).

[SusieODrangus]

I like how at various points in the tree the exercises reinforce a pretty strict, subject then time word order and then at random times completely drops it and penalizes you for picking up on the pattern.

[AndyP0987654321]

I agree (and have reported it), the order they put it in is completely arbitrary and often leaves us having to guess which order they put it in each time.

[hongchisheng]

the random pattern just got me too

[Slade366]

他上星期感冒了 is just as correct

[SarahDeLaF]

Is了necessary when it is explicitly stated that the situation took place last week?

[ghKYFB]

Same question

[TheMolash]

I thought 了is not necessary when the context has already been made clear as past time.

[ghKYFB]

I thought so too...

[cDGmahZ8]

11 months later and the other answer is still not accepted!

[RobinThor]

Sound for 了 should be "le"