carry on and keep up

[henz988]

Hello everyone，

I am having a hard time with carry on and keep up.

1. How long can this situation carry on?
2. This awkward situation kept up for 2 stations…
3. This perplexing situation kept up for a while and I had to get to the bottom of it!

4. — Sunny day, isn’t it?
— Let’s hope the sunny weather____ for Saturday’s tennis match.
A. carries on
B. moves on
C. keeps up
D. goes up
Key C

I am totally confused with them.
Sentences(2,3) are similar to the second sentence in question4 (and I have no problem with the key “keeps up”), but what about sentence1? It comes from a dictionary; what’s more, I can’t see anything wrong with it. And I am sorry, I can’t see anything wrong with “How long can this situation keep on/keep up?”, either.

1. How long can this situation carry on?
4. Let’s hope the sunny weather carries on for Saturday’s tennis match.
Why sentence4 is wrong? There must be a nut hidden somewhere?


Thank you.

 

[bhaisahab]

Hello everyone，

I am having a hard time with carry on and keep up.

1. How long can this situation carry on?
2. This awkward situation kept up for 2 stations…
3. This perplexing situation kept up for a while and I had to get to the bottom of it!

4. — Sunny day, isn’t it?
— Let’s hope the sunny weather____ for Saturday’s tennis match.
A. carries on
B. moves on
C. keeps up
D. goes up
Key C

I am totally confused with them.
Sentences(2,3) are similar to the second sentence in question4 (and I have no problem with the key “keeps up”), but what about sentence1? It comes from a dictionary; what’s more, I can’t see anything wrong with it. And I am sorry, I can’t see anything wrong with “How long can this situation keep on/keep up?”, either.

1. How long can this situation carry on?
4. Let’s hope the sunny weather carries on for Saturday’s tennis match.
Why sentence4 is wrong? There must be a nut hidden somewhere?


Thank you.

"keep up" doesn't work in any of the above examples. In 4 "lasts" would be my choice for the blank, with "carries on" as a distant second.

 

[henz988]

Honestly, your comment is a shock to me because I have never before thought of the case that the option C doesn’t work in question4. I consulted my dictionary just now and found these two examples：
I hope the weather will keep up.
The rain kept up all night.
At least “keep up” can be used in such a way as in my starting thread. That said, I guess you mean “keep up” of such a meaning is already out of fashion now?

 

[emsr2d2]

I have no problem with using "to keep up" when talking about specific weather. However, I do find it a little unnatural in the past tense. I would expect to hear:

If this rain keeps up, we'll have to cancel the picnic.
How long do you think this cold weather will keep up?