It was after he got what he had wanted very much _______ he realized it was not important.
| A．when | B．that | C．since | D．as |
. — Why was Professor Johnson unhappy those days?
— The only reason was ________the theory he stick to ____ wrong.
| A．that; proving | B．why; being proved | C．that; proved | D．why; was proved |
. I would love ____ to the cinema yesterday, but I had to stay home, looking after my sick mother.
| A．going | B．having gone | C．to go | D．to have gone |
. The Smiths looked forward with hope ____ a chance to go abroad.
| A．to get | B．of getting | C．in getting | D．to getting |
. Don’t forget ____ the magazine to the library when you finish ____ it.
| A．to return; looking | B．returning; reading |
| C．to return; reading | D．returning; to look |
. — Why were you so late for work today?
— ____ to the office was not very easy this morning because of the traffic.
| A．Drove | B．Driving | C．I drove | D．What I drove |