My colleague has been recovering gradually since the operation, and it wont’ be long ______ he comes back to work.
In order to gain a bigger share in the international market, many state-run companies are striving _______ their products more competitive.
Fishing is his favorite hobby, and _______.
There are five pairs _______, but I’m at a loss which to choose.
—What do you think made Mary so upset? —_______ her new bike.
When I handed the report to John, he said that George was the person _______.