Some of us remain________at our computer for hours every day，forgetting moving our body.
| A．seating | B．seated | C．sat | D．sit |
The ship was at the _______ of the storm, out of control and helpless.
| A．currency | B．mercy |
| C．policy | D．tendency |
----Father seems worn out.
----Why not have a family tour? A week’s holiday_______ him back to normal.
| A．had brought | B．is bringing |
| C．will be bringing | D．will have brought |
Surely it doesn't matter where charities get their money from, but what ____ is what they do with it.
| A．involves | B．concerns |
| C．means | D．counts |
Only in digital form ________it is used, Bitcoin can be bought in cash.
| A．although | B．while |
| C．as | D．when |
---- What do you think of a house supplied by Lovell ?
---- _______ you buy a home from Lovell, the company promises to buy it back at the same price after three years.
| A．Should | B．Must |
| C．Could | D．Would |