A brilliant idea occurred to him, ________to his research in the lab.
| A．while devoting | B．while devoting himself |
| C．while he was devoted | D．while devoted |
Generally speaking, ______ according to the directions, the drug has no side effect.
| A．when taking | B．when taken | C．when to take | D．when to be taken |
What the leader referred to in the report was really something _______.
| A．worthy to be considered | B．worth to be considered |
| C．worthy of considering | D．worth being considered |
The pen I _______ I _______is on my desk, right under my nose.
| A．thought; had lost | B．think; lost | C．think; had lost | D．thought; have lost |
John may come to see me tonight. I can’t go to the movie with youhe visits.
| A．as long as |
B．in order that | C．because | D．in case |
After he retired from office, Rogers _______ painting for a while, but soon lost interest.
| A．saved up | B．took up | C．kept up | D．drew up |